mwifiex: pcie: Drop bogus __refdata annotation

As the Marvell PCIE WiFi-Ex driver does not have any code or data
located in initmem, there is no need to annotate the mwifiex_pcie
structure with __refdata.  Drop the annotation, to avoid suppressing
future section warnings.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20201211133835.2970384-1-geert+renesas@glider.be

drivers/net/wireless/marvell/mwifiex/pcie.c

@@ -571,7 +571,7 @@ static SIMPLE_DEV_PM_OPS(mwifiex_pcie_pm_ops, mwifiex_pcie_suspend,
 #endif
 
 /* PCI Device Driver */
-static struct pci_driver __refdata mwifiex_pcie = {
+static struct pci_driver mwifiex_pcie = {
 	.name     = "mwifiex_pcie",
 	.id_table = mwifiex_ids,
 	.probe    = mwifiex_pcie_probe,