Drive instrumentation with build flag for C/C++

Bug: 328444881
Test: m
Change-Id: I20c92c61f855adb772d6aa173e85a6d8092460d7
diff --git a/aconfig/codegen/cc_aconfig_library.go b/aconfig/codegen/cc_aconfig_library.go
index 8e516b4..f3e9599 100644
--- a/aconfig/codegen/cc_aconfig_library.go
+++ b/aconfig/codegen/cc_aconfig_library.go
@@ -22,6 +22,7 @@
 	"github.com/google/blueprint/proptools"
 
 	"fmt"
+	"strconv"
 	"strings"
 )
 
@@ -152,6 +153,7 @@
 		Args: map[string]string{
 			"gendir": this.generatedDir.String(),
 			"mode":   mode,
+			"debug":  strconv.FormatBool(ctx.Config().ReleaseReadFromNewStorageCc()),
 		},
 	})