Support builds for multiple architectures the same time:
Use LOCAL_MODULE_TARGET_ARCH to restrict building to specific arches
Use LOCAL_C_INCLUDES_x86 to set the include path for only x86 builds
Change-Id: I7c33c27f1c9bfb6e3318a07514698992482f6cd7
Moved final build of widevine DRM plugin into vendor directory for platform
to avoid needing to reference device-specific libs in the Widevine DRM plugin
link.
Also removed some old .sh scripts that are not needed.
Change-Id: Ie6d397c97bc8afd8154f1dddadbab8c7ee524d7a
