Add webview_zygote target to core_minimal.mk PRODUCT_PACKAGES.

Test: lunch aosp_angler-eng && m checkbuild

Bug: 21643067
Change-Id: I1e0b81055fb74d7238f245e11bf2409c776f2efd
diff --git a/target/product/core_minimal.mk b/target/product/core_minimal.mk
index e008640..04dc015 100644
--- a/target/product/core_minimal.mk
+++ b/target/product/core_minimal.mk
@@ -83,6 +83,7 @@
     uncrypt \
     voip-common \
     webview \
+    webview_zygote \
     wifi-service
 
 PRODUCT_COPY_FILES += \