Version bump to QD1A.190821.007 [core/build_id.mk]

Change-Id: Icd001da0f6a01af5368aca1f69864c3f2380bbd2
diff --git a/core/build_id.mk b/core/build_id.mk
index 9511bb0..b851939 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.
 
-BUILD_ID=QD1A.190821.006
+BUILD_ID=QD1A.190821.007