sh: tmu: Clean up CONFIG_SH_TMU_CLK_FREQ

The R-Car Gen2 feeds the TMU with CONFIG_SYS_CLK_FREQ / 2,
while the old SH parts use CONFIG_SYS_CLK_FREQ directly.
Just put this into the TMU implementation and drop the
CONFIG_SH_TMU_CLK_FREQ config option.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
31 files changed