unicore32/PCI: Remove redundant call of pci_bus_add_devices()

pci_scan_bus() has called pci_bus_add_devices() already, so remove the
redundant call of pci_bus_add_devices(). subsys_init() callbacks will be
invoked before device_init() callbacks, so it should be safe to remove the
redundant calls.

Signed-off-by: Jiang Liu <[e-mail]>
Signed-off-by: Bjorn Helgaas <[e-mail]>

arch/unicore32/kernel/pci.c

···
 		pci_bus_assign_resources(puv3_bus);
 	}
 
-	/*
-	 * Tell drivers about devices found.
-	 */
-	pci_bus_add_devices(puv3_bus);
-
 	return 0;
 }
 subsys_initcall(pci_common_init);