Revert "Load env variables before c.config()" am: 4e88859af0

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/soong/+/15741350

Change-Id: I954c16917928fe1e4eace7209558b42d517c14ab
diff --git a/cmd/soong_ui/main.go b/cmd/soong_ui/main.go
index c9d80d5..ffe502a 100644
--- a/cmd/soong_ui/main.go
+++ b/cmd/soong_ui/main.go
@@ -195,12 +195,13 @@
 		Status:  stat,
 	}}
 
+	config := c.config(buildCtx, args...)
+
 	if err := loadEnvConfig(); err != nil {
 		fmt.Fprintf(os.Stderr, "failed to parse env config files: %v", err)
 		os.Exit(1)
 	}
 
-	config := c.config(buildCtx, args...)
 
 	build.SetupOutDir(buildCtx, config)