ath9k: Use a defined value for pci_set_power_state()

Silence sparse by using a defined value PCI_D3hot instead of a magic
constant in a pci_set_power_state() call.

Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath9k/main.c b/drivers/net/wireless/ath9k/main.c
index 72f2956..b93ada8 100644
--- a/drivers/net/wireless/ath9k/main.c
+++ b/drivers/net/wireless/ath9k/main.c
@@ -2692,7 +2692,7 @@
 
 	pci_save_state(pdev);
 	pci_disable_device(pdev);
-	pci_set_power_state(pdev, 3);
+	pci_set_power_state(pdev, PCI_D3hot);
 
 	return 0;
 }