pci: ensure enumeration of all devices in pci_init

pci: ensure enumeration of all devices in pci_init

Use the uclass_first_device_check and uclass_next_device_check functions
instead of uclass_first_device and uclass_next_device in pci_init. This
ensures that all PCI devices are tried to be probed. Currently if a
device fails to probe, the enumeration stops and the devices which come
after the failed device are not probed.

Signed-off-by: Marek Behún <[email protected]>
Cc: Stefan Roese <[email protected]>
Cc: Anton Schubert <[email protected]>
Cc: Dirk Eibach <[email protected]>
Cc: Mario Six <[email protected]>
Cc: Chris Packham <[email protected]>
Cc: Phil Sutter <[email protected]>
Cc: VlaoMao <[email protected]>
Cc: Tom Rini <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Reviewed-by: Bin Meng <[email protected]>