ARM: tegra: nyan-big: Add timings for RAM codes 4 and 6

Add timings for RAM codes 4 and 6 and a timing for 528mHz of RAM code 1,
which was missed due to the clock driver bug that is fixed now in all of
stable kernels.
Tested-by: Steev Klimaszewski <steev@kali.org>
Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>