uboot-phytec

arm: rmobile: Add prototype for function to get the CPU information to rmobile.h

These functions are defined but has no prototype declaration. Add them.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>