Use prebuilt guava for dialer.

We are now using guava APIs from guava 20, and AOSP guava is stuck at 18.

Test: mma
Change-Id: Ie053a5d8a30a41c7ce0deaaa01a3e17febc651cf
diff --git a/Android.mk b/Android.mk
index 094ad5a..9defc7e 100644
--- a/Android.mk
+++ b/Android.mk
@@ -184,7 +184,7 @@
 	dialer-libshortcutbadger-target \
 	dialer-mime4j-core-target \
 	dialer-mime4j-dom-target \
-	guava \
+	dialer-guava-target \
 	jsr305 \
 	libbackup \
 	libphonenumber \
@@ -278,6 +278,16 @@
 include $(CLEAR_VARS)
 
 LOCAL_MODULE_CLASS := JAVA_LIBRARIES
+LOCAL_MODULE := dialer-guava-target
+LOCAL_SDK_VERSION := current
+LOCAL_SRC_FILES := ../../../prebuilts/tools/common/m2/repository/com/google/guava/guava/20.0/guava-20.0$(COMMON_JAVA_PACKAGE_SUFFIX)
+LOCAL_UNINSTALLABLE_MODULE := true
+
+include $(BUILD_PREBUILT)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_CLASS := JAVA_LIBRARIES
 LOCAL_MODULE := dialer-dagger2-target
 LOCAL_SDK_VERSION := current
 LOCAL_SRC_FILES := ../../../prebuilts/tools/common/m2/repository/com/google/dagger/dagger/2.7/dagger-2.7$(COMMON_JAVA_PACKAGE_SUFFIX)