counter: intel-qep: Use to_pci_dev() helper

Use to_pci_dev() helper instead of container_of(d, struct pci_dev, dev);
Suggested-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Link: https://lore.kernel.org/r/20210611115558.796338-2-jarkko.nikula@linux.intel.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/counter/intel-qep.c

@@ -475,7 +475,7 @@ static void intel_qep_remove(struct pci_dev *pci)
 
 static int __maybe_unused intel_qep_suspend(struct device *dev)
 {
-	struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
+	struct pci_dev *pdev = to_pci_dev(dev);
 	struct intel_qep *qep = pci_get_drvdata(pdev);
 
 	qep->qepcon = intel_qep_readl(qep, INTEL_QEPCON);
@@ -487,7 +487,7 @@ static int __maybe_unused intel_qep_suspend(struct device *dev)
 
 static int __maybe_unused intel_qep_resume(struct device *dev)
 {
-	struct pci_dev *pdev = container_of(dev, struct pci_dev, dev);
+	struct pci_dev *pdev = to_pci_dev(dev);
 	struct intel_qep *qep = pci_get_drvdata(pdev);
 
 	/*