xfs_{copy,db,logprint,repair}: pass xfs_mount pointers instead of xfs_sb pointers

xfs_{copy,db,logprint,repair}: pass xfs_mount pointers instead of xfs_sb pointers

Where possible, convert these four programs to pass a pointer to a
struct xfs_mount instead of the struct xfs_sb inside the mount.  This
will make it easier to convert some of the code to the new
xfs_has_FEATURE predicates later on.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>