gpu: host1x: Allow reset to be missing

Host1x on Tegra234 does not have a software-controllable reset line.
As such, don't bail out if we don't find one in the device tree.

Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

drivers/gpu/host1x/dev.c

@@ -423,9 +423,6 @@ static int host1x_get_resets(struct host1x *host)
 		return err;
 	}
 
-	if (WARN_ON(!host->resets[1].rstc))
-		return -ENOENT;
-
 	return 0;
 }