clk: tegra: Fix pllre Tegra210 and add pll_re_out1

Use a new Tegra210 version of the pll_register_pllre function to
allow setting the proper settings for the m and n div fields.

Additionally define PLL_RE_OUT1 on Tegra210.

Signed-off-by: Rhyland Klein <rklein@nvidia.com>
[treding@nvidia.com: define PLLRE_OUT1 register offset]
Signed-off-by: Thierry Reding <treding@nvidia.com>