firewire: ohci: use devres for PCI-related resources

The PCI framework supports managed device resource to maintain the
lifetime of PCI specific resources.

This commit allows 1394 OHCI driver to utilize it.

Link: https://lore.kernel.org/r/20230604054451.161076-3-o-takashi@sakamocchi.jp


Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>