xfs: don't report metadata inodes to fserror

xfs: don't report metadata inodes to fserror

Internal metadata inodes are not exposed to userspace programs, so it
makes no sense to pass them to the fserror functions (aka fsnotify).
Instead, report metadata file problems as general filesystem corruption.

Fixes: 5eb4cb18e445d0 ("xfs: convey metadata health events to the health monitor")
Signed-off-by: "Darrick J. Wong" <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>