PCI: imx6: Invoke the PHY exit function after PHY power off

To balance phy->init_count, invoke the phy_exit() after phy_power_off().

Link: https://lore.kernel.org/r/1646289275-17813-1-git-send-email-hongxing.zhu@nxp.com
Fixes: 178e244 ("PCI: imx: Add the imx8mm pcie support")
Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>

Author: Richard Zhu

drivers/pci/controller/dwc/pci-imx6.c

@@ -978,6 +978,7 @@ static int imx6_pcie_suspend_noirq(struct device *dev)
 	case IMX8MM:
 		if (phy_power_off(imx6_pcie->phy))
 			dev_err(dev, "unable to power off PHY\n");
+		phy_exit(imx6_pcie->phy);
 		break;
 	default:
 		break;