sw64: pci: consolidate PCI config entry in drivers/pci

Sunway inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I56OLG



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According to commit eb01d42a ("PCI: consolidate PCI config entry in
drivers/pci"), use PCI config entry in drivers/pci instead of arch/sw64.

Signed-off-by: Zhou Xuemei <zhouxuemei@wxiat.com>
Signed-off-by: Gu Zitao <guzitao@wxiat.com>