Fix failures caused by the lack of ACL support in btrfs. For example:
$ make test
::
[TEST/misc] 057-btrfstune-free-space-tree
failed: setfacl -m u:root:x /Volumes/ws/btrfs-progs/tests/mnt/acls/acls.1
test failed for case 057-btrfstune-free-space-tree
make: *** [Makefile:493: test-misc] Error 1
Similar failures occurred in the test cases convert/001-ext2-basic,
convert/003-ext4-basic, convert/005-delete-all-rollback, and
convert/006-large-hole-extent.
Resolve it by adding a check for ACL support using the
check_kernel_support_acl() helper function. It gracefully handles the case
when ACL support is not compiled by calling _not_run().
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>