attr: adjust acl_max of f2fs if inline_xattr is set

If f2fs gets inline_xattr, it enlarges the whole xattr space, which also enables
to cover more acl entries up to 531 from 506.
This patch detects the mount option, inline_xattr, and changes the result of
_acl_get_max for generic/026.

Fixes: 9f7bf79d0c ("attr: add maximum acl count for f2fs")

Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>

common/attr

@@ -43,7 +43,12 @@ _acl_get_max()
 		echo 8191
 		;;
 	f2fs)
-		echo 506
+		_fs_options $TEST_DEV | grep "inline_xattr" >/dev/null 2>&1
+		if [ $? -eq 0 ]; then
+			echo 531
+		else
+			echo 506
+		fi
 		;;
 	*)
 		echo 0