Make change and version bump to PQ2A.181115.001

Change-Id: I0daa7322e1ca7e92a5effaed0a667c055aa0fbc3
diff --git a/core/build_id.mk b/core/build_id.mk
index 932e214..ce86e90 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=PI
+export BUILD_ID=PQ2A.181115.001