recovery: dont blank screen--buggy

Change-Id: Ib243504ed8a1bd0294ab3ec528903e2a233dce2b
usb: add rndis,acm,dm usb.config

Change-Id: I7e92bc9688bafbadaea097c89919e6620e83e917
build.prop: add dirty_regions=false and set minimal dalvik heap

Change-Id: Ibe1c478be09d9de5eda6366605f71a15518352df