Add SystemUI (notification bar) to SDK build.

Change-Id: I3f7001bfcf4ce61a523f7b24f61117225362b5a0
diff --git a/target/product/sdk.mk b/target/product/sdk.mk
index 3b99a69..d73e702 100644
--- a/target/product/sdk.mk
+++ b/target/product/sdk.mk
@@ -17,6 +17,7 @@
 PRODUCT_PROPERTY_OVERRIDES :=
 
 PRODUCT_PACKAGES := \
+	SystemUI \
 	AccountAndSyncSettings \
 	Camera \
 	Calculator \