am 735628e8: am 2ff8919d: Merge changes I7e809264,I504cea21,Ibd2165e6

* commit '735628e8d19fae51574bd5057c142db56797a2b0':
  build: add core_64_bit.mk
  build: reverse abi list when TARGET_PREFER_32_BIT_APPS is set
  build: split TARGET_PREFER_32_BIT for apps and executables