use build system flag RELEASE_READ_FROM_NEW_STORAGE to drive codegen

When RELEASE_READ_FROM_NEW_STORAGE is true, enable reading from new
storage. So that we can ensure nextfood is not impacted.

Ignore-AOSP-First: code only needed for git_main, and will be removed once test mission 1 is finished.

Bug: b/332737012
Test: m
Change-Id: Ide3f432321ebd3dce9427e7cb8f2086e24d3cc31
diff --git a/aconfig/codegen/rust_aconfig_library.go b/aconfig/codegen/rust_aconfig_library.go
index ad8d632..4b896c3 100644
--- a/aconfig/codegen/rust_aconfig_library.go
+++ b/aconfig/codegen/rust_aconfig_library.go
@@ -2,6 +2,7 @@
 
 import (
 	"fmt"
+	"strconv"
 
 	"android/soong/android"
 	"android/soong/rust"
@@ -82,6 +83,7 @@
 		Args: map[string]string{
 			"gendir": generatedDir.String(),
 			"mode":   mode,
+			"debug":  strconv.FormatBool(ctx.Config().ReleaseReadFromNewStorage()),
 		},
 	})
 	a.BaseSourceProvider.OutputFiles = android.Paths{generatedSource}