Version bump to PSV1.210329.007 [core/build_id.mk]

Change-Id: I83f0a32b8220e660b829f7fbf8be328bcad8f4bb
diff --git a/core/build_id.mk b/core/build_id.mk
index 1b48c7e..b6efda8 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.
 
-export BUILD_ID=PSV1.210329.006
+export BUILD_ID=PSV1.210329.007