drm/rockchip: analogix_dp: fix unchecked bound endpoint name length

{
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/gpu/drm/rockchip/analogix_dp-rockchip.c"
                    ],
                    "versions": [
                        {
                            "version": "729f8eefdcadaff98606931e691910f17d8d59d6",
                            "lessThan": "49f5268f43a791dd0d9ff554cce25a3685c7250b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "729f8eefdcadaff98606931e691910f17d8d59d6",
                            "lessThan": "2fcd112caa4ebc64fdcb509f0b26d8daa3fac950",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "729f8eefdcadaff98606931e691910f17d8d59d6",
                            "lessThan": "bc69439d983cc491cc86e01fafc1deb94e1bb85e",
                            "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/gpu/drm/rockchip/analogix_dp-rockchip.c"
                    ],
                    "versions": [
                        {
                            "version": "6.16",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.16",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.53",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.7",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }