Support for ANDROID_BUILD_EVERYTHING_BY_DEFAULT
Support for ANDROID_BUILD_EVERYTHING_BY_DEFAULT

Set ANDROID_BUILD_EVERYTHING_BY_DEFAULT to true to build everything by
default. You can set it in your .bashrc or buildspec.mk.

Change-Id: I0bc2461d0e17c63a6f1c439cdfaaa94e36483a02

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