PCI: imx6: Probe in module_init(), not fs_initcall()

This effectively reverts f216f57ffe6e ("PCI: imx6: Probe the PCIe in
fs_initcall()") as the resource allocation issue that prevented the driver
from working properly at module_initcall level is now fixed in
pcie-designware.c.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Richard Zhu <r65037@freescale.com>
diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
index 35fc73a..b5988b4 100644
--- a/drivers/pci/host/pci-imx6.c
+++ b/drivers/pci/host/pci-imx6.c
@@ -647,7 +647,7 @@
 {
 	return platform_driver_probe(&imx6_pcie_driver, imx6_pcie_probe);
 }
-fs_initcall(imx6_pcie_init);
+module_init(imx6_pcie_init);
 
 MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>");
 MODULE_DESCRIPTION("Freescale i.MX6 PCIe host controller driver");