Fix SDK build.

Ensure that we include the Chromium-WebView resources.

Change-Id: I3f7b4e52ebb59fa6a8952839bb071c7994505b75
diff --git a/target/product/sdk.mk b/target/product/sdk.mk
index f9e69cb..51b90f5 100644
--- a/target/product/sdk.mk
+++ b/target/product/sdk.mk
@@ -91,6 +91,7 @@
 
 $(call inherit-product-if-exists, frameworks/base/data/fonts/fonts.mk)
 $(call inherit-product-if-exists, frameworks/base/data/keyboards/keyboards.mk)
+$(call inherit-product-if-exists, frameworks/webview/chromium/chromium.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/core.mk)
 
 # Overrides