qed: Drop useless pci_params.pm_cap

qed_init_pci() used pci_params.pm_cap only to cache the pci_dev.pm_cap.
Drop the cache and use pci_dev.pm_cap directly.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://lore.kernel.org/r/20240325224931.1462051-1-helgaas@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>