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
Includes Widevine libraries Version 4.5.0.7809
Also fixed samplePlayer's MediaCodec mode not running and
WVDrmInfoRequestStatusKey returning incorrect value.
Change-Id: Ibcc6d313790670a908ada93be80d6bf55a67b4ed
related-to-bug: 6929628
related-to-bug: 6833718
related-to-bug: 6889322