libstagefright: Framework changes for video bringup

 -Modified the makefile to define the correct macros depending on the target.
 -Added changes to select the proper video output color format for each target using
the macros defined in the makefile.
 -Modified the thumbnail generation logic to select HW decoders for supported targets.

Patchset 1: Add QCOM_HARDWARE ifdefs and rename TARGET_BOARD stuff.
Patchset 2: Fix ifdef for 8x60 for non-qcom hardware.

Conflicts:

	media/libstagefright/Android.mk

Change-Id: Ia034fb025c116a79937e70101e93fcc478898e8a
Signed-off-by: Evan McClain <aeroevan@gmail.com>