Version bump to OPR2.170623.006

Change-Id: I68c6246b357fcb3a64148d5a2d083540c0f8bca1
diff --git a/core/build_id.mk b/core/build_id.mk
index 1b2e429..0d891db 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=OPR2.170623.005
+export BUILD_ID=OPR2.170623.006