angler: HWC virtual display configuration

Bug: 22820087

Change-Id: I8ced08034c64bee83e74d407bd38d33e79c3d389
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 5f2e2d9..5a01526 100755
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -67,6 +67,8 @@
 USE_OPENGL_RENDERER := true
 TARGET_USES_ION := true
 TARGET_USES_C2D_COMPOSITION := true
+TARGET_FORCE_HWC_FOR_VIRTUAL_DISPLAYS := true
+MAX_VIRTUAL_DISPLAY_DIMENSION := 2048
 
 HAVE_ADRENO_SOURCE:= false