Fix tools 22.6 job, missing the fat32lib.jar in tools/lib.

SDK bug: b.android.com/66906

Change-Id: I9962b99b8d3c3a8a302715625d8583e739bf259a
diff --git a/build.gradle b/build.gradle
index 57f9a94..f48110f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -1,5 +1,6 @@
 apply plugin: 'java'
 apply plugin: 'maven'
+apply plugin: 'distrib'
 
 group = "com.android.tools.build"
 archivesBaseName = 'fat32lib'