Switch Bullhead to HWC2on1Adapter

Test: AUPT bullhead

Change-Id: Ic37aa5f4c62384077fdbca121890b50155fc609b
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 88507cb..b3c276c 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -85,6 +85,8 @@
 TARGET_USES_ION := true
 TARGET_USES_C2D_COMPOSITION := true
 TARGET_FORCE_HWC_FOR_VIRTUAL_DISPLAYS := true
+TARGET_USES_HWC2 := true
+TARGET_USES_HWC2ON1ADAPTER := true
 MAX_VIRTUAL_DISPLAY_DIMENSION := 2048
 
 TARGET_AUX_OS_VARIANT_LIST := bullhead