clk: tegra: add TEGRA_DIVIDER_ROUND_UP for periph clks

Perform upwards rounding when calculating dividers for periph clks on Tegra30
and Tegra114.

Signed-off-by: Peter De Schrijver <pdeschrijver@nvidia.com>

diff --cc drivers/clk/tegra/clk-tegra114.c
Simple merge

diff --cc drivers/clk/tegra/clk-tegra30.c
Simple merge