Put prebuilt emulator path after host output
Put prebuilt emulator path after host output

So that built emulator is used instead of prebuilt one when
BUILD_EMULATOR=true.

Change-Id: I67dfbfc2c3bf9bf051e56de425caa07b08d4b2e4

xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build,xorware/android_build