Add native bridge abis to corresponding abilists

This uses TARGET_NATIVE_BRIDGE_*_ABI variable to automatically generate
abi lists.

Sample properties for x86+arm:
ro.product.cpu.abilist=x86,armeabi-v7a,armeabi
ro.product.cpu.abilist32=x86,armeabi-v7a,armeabi
ro.product.cpu.abilist64=

Sample properties for x86_64+arm64:
ro.product.cpu.abilist=x86_64,x86,arm64-v8a,armeabi-v7a,armeabi
ro.product.cpu.abilist32=x86,armeabi-v7a,armeabi
ro.product.cpu.abilist64=x86_64,arm64-v8a

Bug: http://b/77159578
Bug: http://b/28684022
Test: make cf_x86_64_phone, deploys, check adb shell getprop | grep abi
Change-Id: I42a73f5c627b9d9f44e31cc5ad84238e1050f52a