Strict Aliasing Fix

Change-Id: Ic7bef032c5e3bcefad1ee712a830fa895c73ab2b

Conflicts:
	media/libeffects/downmix/EffectDownmix.c
	media/libeffects/visualizer/EffectVisualizer.cpp
	media/libnbaio/Android.mk
	media/libstagefright/Android.mk
	services/audioflinger/Android.mk