Version bump to PQ3B.190408.007

Change-Id: Iabf1fd141eca82a677104a45e2f780d9f3f645d0
diff --git a/core/build_id.mk b/core/build_id.mk
index 0e5f848..4396d12 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=PQ3B.190408.006
+export BUILD_ID=PQ3B.190408.007