Optimizing: Run additional tests on target.

These tests were running only when x86 codegen was supported
but they actually use the runtime instruction set, rather
than x86 codegen. Move them to the generic tests, so that
they run also on target now that it's cheap thanks to
    https://android-review.googlesource.com/1310447 .

Test: m test-art-host-gtest
Test: run-gtests.sh
Change-Id: I76338453fbb5112fa07e8cd7c323dcd894790042
2 files changed