build: reverse abi list when TARGET_PREFER_32_BIT_APPS is set

If the product prefers 32-bit apps signal that preference to
PackageManager by reversing the abi list.

Also uses the absence of TARGET_SUPPORTS_32_BIT_APPS and
TARGET_SUPPORTS_64_BIT_APPS to remove those ABIs from the
ABI list.

Change-Id: I504cea21b6f800a7a9e7706b4a7123d3fb07c383