drm/bridge: cdns-mhdp: Call phy_exit() in mhdp_remove()

We should call phy_exit() when we stop using phy, so call it in
mhdp_remove().

Signed-off-by: Jyri Sarha <jsarha@ti.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>

drivers/gpu/drm/bridge/cdns-mhdp.c

@@ -1801,6 +1801,8 @@ static int mhdp_remove(struct platform_device *pdev)
 		return ret;
 	}
 
+	phy_exit(mhdp->phy);
+
 	pm_runtime_put_sync(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);