Make the base product depend on webview indirectly.

Instead of depending on libwebcore directly as part of the base product,
depend on the phony "webview" target from frameworks/webview instead, to
allow the Chromium-powered webview to override it.

Change-Id: I2f9c103a57a730b252e8a05d52c5b4c1b9711319
diff --git a/target/product/base.mk b/target/product/base.mk
index 68fed42..a90a7f0 100644
--- a/target/product/base.mk
+++ b/target/product/base.mk
@@ -79,7 +79,6 @@
     libutils \
     libvisualizer \
     libvorbisidec \
-    libwebcore \
     libwpa_client \
     mediaserver \
     monkey \
@@ -102,7 +101,7 @@
     system_server \
     tc \
     vdc \
-    vold
+    vold \
+    webview
 
 $(call inherit-product, $(SRC_TARGET_DIR)/product/embedded.mk)
-