net/mlx5: Convert PCI error values to generic errnos

mlx5_pci_link_toggle() returns a mix of PCI-specific error codes and
generic errnos.

Convert the PCI-specific error values to generic errno using
pcibios_err_to_errno() before returning them.

Fixes: eabe8e5e ("net/mlx5: Handle sync reset now event")
Fixes: 212b4d72 ("net/mlx5: Wait for firmware to enable CRS before pci_restore_state")
Link: https://lore.kernel.org/r/20230814132721.26608-1-ilpo.jarvinen@linux.intel.com


Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
[bhelgaas: rebase to pci/pcie-rmw, also convert in mlx5_check_dev_ids()]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>