Version bump to PPR1.180320.002

Change-Id: I6db7a8a0cfa55a5ace6b2e2eec98e8fd1bcac6ef
diff --git a/core/build_id.mk b/core/build_id.mk
index 165075f..73000ae 100644
--- a/core/build_id.mk
+++ b/core/build_id.mk
@@ -18,4 +18,4 @@
 # (like "CRB01").  It must be a single word, and is
 # capitalized by convention.
 
-export BUILD_ID=PPR1.180320.001
+export BUILD_ID=PPR1.180320.002