remove usb otg from storage list
re-add BOARD_USES_GENERIC_AUDIO := false
remove usb audio

Change-Id: Ibbc3509ef08d6f4959e24ff7bd593b216050d8d8
	modified:   BoardConfig.mk

Change-Id: Ie6f193e1eab52a13d873f71ca690abefaa8404f9
Enable support for mHeap-based screenshots

Change-Id: Ifc0861b4f5b05b5c5b533480737aa743b49ee347
	modified:   BoardConfig.mk

Change-Id: Ie3df1a90e362cf0ece4d5d9606bf08553a9b341a