Added missing files to allow building with media-legacy devices

Change-Id: I7fb842f2437c81f164bf0cdfe7e7cfd2bcee44ad
Disable excessive debugging messages
libstagefrighthw: QComOMXMetadata: Fix redefinition

In 4.4, this definition is in the MetadataBufferType.h header in frameworks/native

Signed-off-by: Sultanxda <sultanxda@gmail.com>
mm-core: inc: Add missing definitions