kernel: btrfs: enable ACL
By default CONFIG_BTRFS_FS_POSIX_ACL is disabled, it should be enabled
only when you enable CONFIG_FS_POSIX_ACL.
Right now, when you enable CONFIG_FS_POSIX_ACL it will enable
CONFIG_BTRFS_FS_POSIX_ACL, but it will be disabled once you install
kmod-btrfs. This should prevent it.
Btrfs has enabled by default ACL for mount option.
More details:
https://cateee.net/lkddb/web-lkddb/BTRFS_FS_POSIX_ACL.html
https://btrfs.wiki.kernel.org/index.php/Manpage/btrfs(5)
Signed-off-by: Josef Schlehofer <josef.schlehofer@nic.cz>