ADD: [droid] libstagefright dvdplayer hw codec

Conflicts:

	xbmc/android/activity/XBMCApp.cpp
	xbmc/android/activity/XBMCApp.h
move eglGetProcAddress to EGLWrapper
[stagefright] refactor pthread
[stagefright] refactor
[stagefright] adapt to new dropping code
[stagefright] adapt to new codec configure