vts_fs_test: Relax filesystem constraints for fixed partitions.

Adjust this test to align with VSR. First, skip the test if kernel is
< 5.10 or < Android 13. Second, allow non-dynamic partitions to be vfat.

Bug: 286038059
Test: vts_fs_test on CF
Change-Id: I5bd874f68296f7155d8c4366ebc13fe3d59c3ee6
1 file changed