Add support for MSA I5 instructions in mips32 and mips64 simulators.

Bug: 
Change-Id: Ie1be499a1b3c686603348d895456b8f39d5c1002
Reviewed-on: https://chromium-review.googlesource.com/552554Reviewed-by: Ivica Bogosavljevic <ivica.bogosavljevic@imgtec.com>
Commit-Queue: Ivica Bogosavljevic <ivica.bogosavljevic@imgtec.com>
Cr-Commit-Position: refs/heads/master@{#46359}