Version bump to SD1A.210817.036.A6 [core/build_id.mk]

Change-Id: I2842cc806ecbbe24778671fdd319fd3ec3d0ba9d
diff --git a/core/build_id.mk b/core/build_id.mk
index 0178d71..eea5116 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.210817.036.A5
+BUILD_ID=SD1A.210817.036.A6