PCI/AER: Rename error recovery interfaces to generic PCI naming

Rename error recovery interfaces with "pcie_" prefix so they can be made
non-static.

Signed-off-by: Oza Pawandeep <poza@codeaurora.org>
[bhelgaas: move declaration to later patch, leave functions static]
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Keith Busch <keith.busch@intel.com>