Some clarifications in preparation to automatically order linker dependencies

Test: Browse the code and determine whether it's easier to understand
Bug: 66260943
Change-Id: I88c24a8a31ef68f428919087d206433659265684
diff --git a/cc/installer.go b/cc/installer.go
index 027d191..92076e5 100644
--- a/cc/installer.go
+++ b/cc/installer.go
@@ -69,7 +69,7 @@
 	if !ctx.Host() && !ctx.Arch().Native {
 		dir = filepath.Join(dir, ctx.Arch().ArchType.String())
 	}
-	if installer.location == InstallInData && ctx.vndk() {
+	if installer.location == InstallInData && ctx.useVndk() {
 		dir = filepath.Join(dir, "vendor")
 	}
 	return android.PathForModuleInstall(ctx, dir, installer.subDir, installer.Properties.Relative_install_path, installer.relative)