Make the default preopt 'interpret-only'.

bug:33799337
bug:36534079

Test: m -j32 bullhead/angler/marlin/sailfish

Change-Id: I30d9234334dbd520194993aa0e4603e2d415c603
(cherry picked from commit e0848c8b7f0db40ca86c13bd4f601b8c80f978ea)
1 file changed