Use soong_ui.bash instead of make.

This was using the actual make binary instead of
the envsetup function make, so it didn't actually
pick the right number of cores, and it may be
deprecated soon, so adding this here.

Bug: N/A
Test: runtests.sh after clearing intermediates
Change-Id: Id94814156ef1a1616795ca0950449b7ff5fac573
1 file changed