Version bump to SD1A.210817.015 [core/build_id.mk]

Change-Id: I44fab01365b4edfed7d05825e809193ac44b0fd7
diff --git a/core/build_id.mk b/core/build_id.mk
index 37a6617..fea753e 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=SD1A.210817.014
+BUILD_ID=SD1A.210817.015