Define prebuilt_tvconfig module type

This module type is used only in fsgen package for prebuilt_* module
generation.

Test: lunch <failing product> && m nothing
Bug: 378585811
Change-Id: I13d7affc636f3a613cc396b379e8b5937189aa79
diff --git a/etc/prebuilt_etc.go b/etc/prebuilt_etc.go
index be943a3..47b391c 100644
--- a/etc/prebuilt_etc.go
+++ b/etc/prebuilt_etc.go
@@ -80,6 +80,7 @@
 	ctx.RegisterModuleType("prebuilt_bt_firmware", PrebuiltBtFirmwareFactory)
 	ctx.RegisterModuleType("prebuilt_tvservice", PrebuiltTvServiceFactory)
 	ctx.RegisterModuleType("prebuilt_optee", PrebuiltOpteeFactory)
+	ctx.RegisterModuleType("prebuilt_tvconfig", PrebuiltTvConfigFactory)
 
 	ctx.RegisterModuleType("prebuilt_defaults", defaultsFactory)
 
@@ -961,3 +962,13 @@
 	android.InitDefaultableModule(module)
 	return module
 }
+
+// prebuilt_tvconfig installs files in <partition>/tvconfig directory.
+func PrebuiltTvConfigFactory() android.Module {
+	module := &PrebuiltEtc{}
+	InitPrebuiltEtcModule(module, "tvconfig")
+	// This module is device-only
+	android.InitAndroidArchModule(module, android.DeviceSupported, android.MultilibCommon)
+	android.InitDefaultableModule(module)
+	return module
+}