staging: rtl8821ae: fix double const in sw.c

This commit fixes the following sparse warning:

drivers/staging/rtl8821ae/rtl8821ae/sw.c:
    - 449:14: warning: duplicate const
Signed-off-by: Konrad Zapalowicz <bergo.torino@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8821ae/rtl8821ae/sw.c

@@ -446,7 +446,7 @@ MODULE_PARM_DESC(ips, "using no link power save (default 1 is open)\n");
 MODULE_PARM_DESC(fwlps, "using linked fw control power save (default 1 is open)\n");
 
 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,29))
-static const SIMPLE_DEV_PM_OPS(rtlwifi_pm_ops, rtl_pci_suspend, rtl_pci_resume);
+static SIMPLE_DEV_PM_OPS(rtlwifi_pm_ops, rtl_pci_suspend, rtl_pci_resume);
 #endif
 
 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,29))