ice: Don't process extts if PTP is disabled

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/intel/ice/ice_ptp.c"
                    ],
                    "versions": [
                        {
                            "version": "172db5f91d5f7b91670c68a7547798b0b5374158",
                            "lessThan": "2ab26aeec3de0a677e02d6bc4dc85d49cd1ec4ac",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "172db5f91d5f7b91670c68a7547798b0b5374158",
                            "lessThan": "9aa83a5eb013f8aff20e701aa25ba6b0eaad0b65",
                            "status": "affected",
                            "versionType": "git"
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                        {
                            "version": "172db5f91d5f7b91670c68a7547798b0b5374158",
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                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "172db5f91d5f7b91670c68a7547798b0b5374158",
                            "lessThan": "996422e3230e41468f652d754fefd1bdbcd4604e",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                }

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/net/ethernet/intel/ice/ice_ptp.c"
                    ],
                    "versions": [
                        {
                            "version": "5.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.191",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.160",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.9.9",
                            "lessThanOrEqual": "6.9.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.10",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }