pci: kconfig: fix spelling in description

Fix 'driver model' rather than 'driver mode' in description.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Signed-off-by: Tom Warren <twarren@nvidia.com>

drivers/pci/Kconfig

@@ -9,7 +9,7 @@ menuconfig PCI
 if PCI
 
 config DM_PCI
-	bool "Enable driver mode for PCI"
+	bool "Enable driver model for PCI"
 	depends on DM
 	help
 	  Use driver model for PCI. Driver model is the new method for