Add desugar_deploy.jar to third_party.

Bug:
Change-Id: I3630cf107cf661f1ea4d0b8326f32525ca654c69
diff --git a/build.gradle b/build.gradle
index e0c50ee..4fae469 100644
--- a/build.gradle
+++ b/build.gradle
@@ -366,6 +366,7 @@
         "proguard/proguard_internal_159423826",
         "framework",
         "goyt",
+        "desugar/desugar_20180308"
     ],
 ]