Version bump to SD1A.210817.018 [core/build_id.mk]

Change-Id: Ib82e1f4146d26cbb4c601ae507c086737b904b71
diff --git a/core/build_id.mk b/core/build_id.mk
index 86b1540..cde5c8c 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.210817.017
+BUILD_ID=SD1A.210817.018