Bluetooth: ISO: clear iso_data always when detaching conn from hcon

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/bluetooth/iso.c"
                    ],
                    "versions": [
                        {
                            "version": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
                            "lessThan": "cc1d39946d62bc568551dfb81149724de1e91338",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
                            "lessThan": "7b51a9c25e9698b64df9f2218f10eecf7dc7e2d0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
                            "lessThan": "63c0f396a18b767eb28e895eb95bbdce6c172c59",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
                            "lessThan": "69a4a7b162b3db6ac337e3094cdee38f24d42ff7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "fbdc4bc47268953c80853489f696e02d61f9a2c6",
                            "lessThan": "d57e506f6a1e3929611340fae87c1e4823f4d85c",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c03a10bd5b6ccb22921e04bcddc987410df7e7a9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "6.5.12",
                            "lessThan": "6.6",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "net/bluetooth/iso.c"
                    ],
                    "versions": [
                        {
                            "version": "6.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.6",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.151",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.103",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.44",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.8",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }