Merge "Revert "Revert "Load env variables before c.config()""" into rvc-dev am: 9ecad7478f

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/soong/+/15778291

Change-Id: I432a96406905bf64a1bad06ec0c902d372802346
diff --git a/cmd/soong_ui/main.go b/cmd/soong_ui/main.go
index ffe502a..c9d80d5 100644
--- a/cmd/soong_ui/main.go
+++ b/cmd/soong_ui/main.go
@@ -195,13 +195,12 @@
 		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)