Fix 099-vmdebug and 802-deoptimization art tests for Mips.

There are 2 bugs that are causing these 2 tests to fail the same way.
The first one is we should be using $t9 for function calls so $gp can
be calculated correctly. The second bug is there can't be a gap between
the quick frame and the callee save frame, otherwise the WalkStack()
function will get confused and crash.

Bug: 19003184
Change-Id: I3c545ce18268deb73150fca2a7d7a798540f1cf2