vts_fs_test: Only require EROFS in T+ kernels. am: aee8ddbc46

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/core/+/19293151

Change-Id: I39fdaf697f69dcb1dabe6c7f8c4f8793d4e3854a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>