Update latest version of gmscore in third_party.

R=sgjesse@google.com

Bug:
Change-Id: Ib4899b1658e33ff05bc898aca4002ed6841371dd
diff --git a/tools/gmscore_data.py b/tools/gmscore_data.py
index 9939e1c..c0e5881 100644
--- a/tools/gmscore_data.py
+++ b/tools/gmscore_data.py
@@ -20,6 +20,9 @@
 
 V10_BASE = os.path.join(BASE, 'gmscore_v10')
 V10_PREFIX = os.path.join(V10_BASE, 'GmsCore_prod_alldpi_release_all_locales')
+
+LATEST_BASE = os.path.join(BASE, 'latest')
+LATEST_PREFIX = os.path.join(LATEST_BASE, 'GmsCore_prod_alldpi_release_all_locales')
 ANDROID_L_API = '21'
 
 # NOTE: we always use android.jar for SDK v25, later we might want to revise it
@@ -110,4 +113,11 @@
       'min-sdk-version' : ANDROID_L_API,
     }
   },
+  'latest': {
+    'deploy' : {
+      'inputs': ['%s_deploy.jar' % LATEST_PREFIX],
+      'pgconf': ['%s_proguard.config' % LATEST_PREFIX],
+      'min-sdk-version' : ANDROID_L_API,
+    },
+  },
 }