Version bump to PPR1.180508.002

Change-Id: Ib3e756f36ea7a5703a3e909aed6ce0089a8c6e99
diff --git a/core/build_id.mk b/core/build_id.mk
index 4d76562..bd1a000 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=PPR1.180508.001
+export BUILD_ID=PPR1.180508.002