MIPS: Improving art_quick_imt_conflict_trampoline

This is fixing stub_test for MIPS32 and MIPS64. This is follow up
change for Ie74d1c77cf73d451a1142bdc5e3683f9f84bb4e7.

Change-Id: I3c53ef690aff49d7cf9ad3de3aaed9a3d2e1c6b9
6 files changed