PCI/AER: Configure ECRC only if AER is native

As the ECRC configuration bits are part of AER registers, configure ECRC
only if AER is natively owned by the kernel.

Link: https://lore.kernel.org/r/20230112072111.20063-1-vidyas@nvidia.com


Signed-off-by: Vidya Sagar <vidyas@nvidia.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>