Version bump to SD1A.210817.036.A5 [core/build_id.mk]

Change-Id: Ie93830d4bf25c67f2543c79a10c55862d71c59a1
diff --git a/core/build_id.mk b/core/build_id.mk
index 1bc95a0..0178d71 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.A4
+BUILD_ID=SD1A.210817.036.A5