Merge changes from topic "am-23aeaa9a55384bd6a46e8c18ccb5bd39" into tm-d1-dev-plus-aosp
* changes:
Do not enforce EROFS for android-T and below. am: b2182ee8 am: ea705b68 am: fcbb3fea
Check userspace snapshots only for API level >= T am: 9591090a am: 6a7cb896 am: d9406fa6
libsnapshot: Fix vts_libsnapshot_test.SnapshotUpdateTest#FullUpdateFlow am: 29971711 am: 43272903 am: 1c825541