rtlwifi: rtl_pci: Use dev_get_drvdata

Instead of using to_pci_dev + pci_get_drvdata,
use dev_get_drvdata to make code simpler.
Signed-off-by: NChuhong Yuan <hslester96@gmail.com>
Signed-off-by: NKalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/realtek/rtlwifi/pci.c

@@ -2409,8 +2409,7 @@ EXPORT_SYMBOL(rtl_pci_disconnect);
  ****************************************/
 int rtl_pci_suspend(struct device *dev)
 {
-	struct pci_dev *pdev = to_pci_dev(dev);
-	struct ieee80211_hw *hw = pci_get_drvdata(pdev);
+	struct ieee80211_hw *hw = dev_get_drvdata(dev);
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 
 	rtlpriv->cfg->ops->hw_suspend(hw);
@@ -2422,8 +2421,7 @@ EXPORT_SYMBOL(rtl_pci_suspend);
 
 int rtl_pci_resume(struct device *dev)
 {
-	struct pci_dev *pdev = to_pci_dev(dev);
-	struct ieee80211_hw *hw = pci_get_drvdata(pdev);
+	struct ieee80211_hw *hw = dev_get_drvdata(dev);
 	struct rtl_priv *rtlpriv = rtl_priv(hw);
 
 	rtlpriv->cfg->ops->hw_resume(hw);