Allow override of -Wno-error=format

Move -Wno-error=format from noOverrideGlobalCflags to
commonGlobalCflags so that projects can re-enable it with
"-Werror=format"

Bug: 315250603
Test: Add -Werror=format to bluetooth_cflags
Change-Id: I677cee5373c670c1a3b0eceeea1b7c35d28a17c2
diff --git a/cc/config/global.go b/cc/config/global.go
index 08fcb91..16b5e09 100644
--- a/cc/config/global.go
+++ b/cc/config/global.go
@@ -144,6 +144,9 @@
 
 		// Make paths in deps files relative.
 		"-no-canonical-prefixes",
+
+		// http://b/315250603 temporarily disabled
+		"-Wno-error=format",
 	}
 
 	commonGlobalConlyflags = []string{}
@@ -254,8 +257,6 @@
 		"-Werror=fortify-source",
 		// http://b/315246135 temporarily disabled
 		"-Wno-unused-variable",
-		// http://b/315250603 temporarily disabled
-		"-Wno-error=format",
 		// Disabled because it produces many false positives. http://b/323050926
 		"-Wno-missing-field-initializers",
 		// http://b/323050889