Fix status code

I suspect I pasted it and forgot to fix it originally.

Change-Id: Id883d47d5a8768c88d19056c24e0ab968a9e2dd8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2355095Reviewed-by: Andres Calderon Jaramillo <andrescj@chromium.org>
Commit-Queue: Ted Meyer <tmathmeyer@chromium.org>
Cr-Commit-Position: refs/heads/master@{#798029}

media/gpu/vaapi/vaapi_picture_tfp.cc

@@ -63,7 +63,7 @@ Status VaapiTFPPicture::Initialize() {
   if (!glx_image_->Initialize(x_pixmap_)) {
     // x_pixmap_ will be freed in the destructor.
     DLOG(ERROR) << "Failed creating a GLX Pixmap for TFP";
-    return StatusCode::kVaapiNoPixmap;
+    return StatusCode::kVaapiFailedToInitializeImage;
   }
 
   gl::ScopedTextureBinder texture_binder(texture_target_, texture_id_);