Build against libphonenumber-platform.

Don't compile libphonenumber sources directly.

Change-Id: Ib2efd84535a2cffe773271fd1ddcb66a6a651cb8
diff --git a/Android.mk b/Android.mk
index 7cd6635..5d9c5b3 100644
--- a/Android.mk
+++ b/Android.mk
@@ -998,13 +998,9 @@
 	../../external/nist-sip/java \
 	../../external/apache-http/src \
 	../../external/tagsoup/src \
-	../../external/libphonenumber/java/src
 
 ext_src_files := $(call all-java-files-under,$(ext_dirs))
 
-ext_res_dirs := \
-	../../external/libphonenumber/java/src
-
 # ====  the library  =========================================
 include $(CLEAR_VARS)
 
@@ -1012,7 +1008,7 @@
 
 LOCAL_NO_STANDARD_LIBRARIES := true
 LOCAL_JAVA_LIBRARIES := core-libart
-LOCAL_JAVA_RESOURCE_DIRS := $(ext_res_dirs)
+LOCAL_STATIC_JAVA_LIBRARIES := libphonenumber-platform
 LOCAL_MODULE_TAGS := optional
 LOCAL_MODULE := ext