Support RTL in chips library.

Fixes b/12569794.

Change-Id: I927a5d3e0d4af42a3ca3fbbb87ba201fe7bb830e
diff --git a/chips/AndroidManifest.xml b/chips/AndroidManifest.xml
index 7487c18..02ea564 100644
--- a/chips/AndroidManifest.xml
+++ b/chips/AndroidManifest.xml
@@ -19,6 +19,6 @@
 
     <uses-sdk
         android:minSdkVersion="11"
-        android:targetSdkVersion="18" />
+        android:targetSdkVersion="19" />
 
 </manifest>
\ No newline at end of file