PCI: Fix kernel-doc markup

Update kernel-doc so the names in the doc match the prototypes.

Link: https://lore.kernel.org/r/f19caf7a68f8365c8b573a42b4ac89ec21925c73.1603469755.git.mchehab+huawei@kernel.org


Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>