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/android/config.go b/android/config.go
index f2f7d7d..74fba6b 100644
--- a/android/config.go
+++ b/android/config.go
@@ -234,6 +234,11 @@
 		Bool(c.config.productVariables.HiddenapiExportableStubs)
 }
 
+// Enable read flag from new storage
+func (c Config) ReleaseReadFromNewStorage() bool {
+	return c.config.productVariables.GetBuildFlagBool("RELEASE_READ_FROM_NEW_STORAGE")
+}
+
 // A DeviceConfig object represents the configuration for a particular device
 // being built. For now there will only be one of these, but in the future there
 // may be multiple devices being built.