Pass --bitness to device APEX tests only.

The host APEX is always built multilib, regardless of TARGET_PRODUCT.

#codehealth

Test: env TARGET_PRODUCT=aosp_cf_x86_64_phone \
        art/build/apex/runtests.sh --bitness=multilib
Test: env TARGET_PRODUCT=aosp_arm \
        art/build/apex/runtests.sh --bitness=32
Change-Id: I71a3e404a0c0b8ee4e48d2fa14db881d5934d894
1 file changed