Use a working revision of frameworks_webview

Fix this:
make: *** No rule to make target `/home/marco/repo/pac/out/target/common/obj/JAVA_LIBRARIES/android_webview_java_intermediates/javalib.jar', needed by `/home/marco/repo/pac/out/target/common/obj/JAVA_LIBRARIES/webviewchromium_intermediates/classes-full-debug.jar'.  Stop.