[binutils-gdb] Remove some uses of is_mi_like_p from spu-tdep.c

[sergiodj+buildbot@sergiodj.net]

*** TEST RESULTS FOR COMMIT 40c03530b197d8d6ef550283ecd6684e8d49301b ***

Author: Tom Tromey <tom@tromey.com>
Branch: master
Commit: 40c03530b197d8d6ef550283ecd6684e8d49301b

Remove some uses of is_mi_like_p from spu-tdep.c

There were a few spots in spu-tdep.c where a use of is_mi_like_p was
not needed.

ChangeLog
2018-04-30  Tom Tromey  <tom@tromey.com>

	* spu-tdep.c (info_spu_mailbox_list, info_spu_dma_cmdlist)
	(info_spu_event_command): Remove some uses of is_mi_like_p.