sh-pfc: r8a7791: fix CAN pin groups
sh-pfc: r8a7791: fix CAN pin groups

I had made last-minute changes before submitting the patch "sh-pfc: r8a7791:
add CAN pin groups"; now I'm seeing that they weren't complete: I had missed
update to the pin group names in pin[01]_groups[]. Drop the "_a" suffixes there.

Signed-off-by: Sergei Shtylyov <d8c69075be49b0738b690ec4af0e9025b8c97c9e@cogentembedded.com>
Acked-by: Laurent Pinchart <3ded2f39a78f0d7044839546f95841842b4d7c96@ideasonboard.com>
Signed-off-by: Linus Walleij <9cd9d802d23c0ed5e224beabf4ae4a5c478746ef@linaro.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs