xfs: standardize inode number formatting in ftrace output

Always print inode numbers in hexadecimal and preceded with the unit
"ino" or "agino", as apropriate.  Fix one tracepoint that used "ino %u"
for an inode btree block count to reduce confusion.

Signed-off-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>