Fix typos in drivers/pci.  Comment and whitespace changes only.

Link: https://lore.kernel.org/r/20190819115306.27338-1-kw@linux.comSigned-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>	# armada8k