Convert linkerconfig package to use test fixtures

Bug: 181070625
Test: m nothing
Change-Id: Ic85e353ad8fa2aa324cd75d5bca8a1e31fd977a8
diff --git a/linkerconfig/linkerconfig.go b/linkerconfig/linkerconfig.go
index ff548e5..da80a47 100644
--- a/linkerconfig/linkerconfig.go
+++ b/linkerconfig/linkerconfig.go
@@ -27,7 +27,11 @@
 
 func init() {
 	pctx.HostBinToolVariable("conv_linker_config", "conv_linker_config")
-	android.RegisterModuleType("linker_config", linkerConfigFactory)
+	registerLinkerConfigBuildComponent(android.InitRegistrationContext)
+}
+
+func registerLinkerConfigBuildComponent(ctx android.RegistrationContext) {
+	ctx.RegisterModuleType("linker_config", linkerConfigFactory)
 }
 
 type linkerConfigProperties struct {