sh: tmu: Changed TMU driver using array of structures

This changed into access using array of structure from access to the register
using the definition of the register by macro.
And removed white space.

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