PCI: rcar: Remove redundant config accessor register number checks
The PCI core will have already checked the configuration register address
before calling the {read|write}() methods; so don't check it again in these
methods.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Phil Edworthy <phil.edworthy@renesas.com> Acked-by: Simon Horman <horms+renesas@verge.net.au>