p4-common: set PRODUCT_AAPT/PREF_CONFIG

-add hdpi in case mdpi is not available
-add xlarge to sort some spacing
-add mdpi as preferred

-reference tf101 and loosethisskin
recovery: set ro flags after class_start (on boot)
p4-common: disable render_dirty_regions

Conflicts:
	p4-common.mk
wireless: update firmware from i9100

-use firmware from i9100 (XWLSS)
-add WiFiDirectDemo
-update p2p_oper values

Conflicts:
	p4-common.mk