IMPORTANT: some devices in your Android tree are 64bit targets. If your device is aarch64,
please define droid_target_aarch64 in your .spec, otherwise define droid_target_armv7hl
NOTE: Currently there is no Sailfish OS ARM 64bit target, so leave PORT_ARCH as armv7hl
Mixed builds of 64bit Android+Linux Kernel and 32bit Sailfish OS work just fine.