clk: tegra: add clock support for Tegra30

Add Tegra30 clock support based on common clock framework.

Signed-off-by: Prashant Gaikwad <[email protected]>
[swarren: ensure all OF lookups return valid cookies i.e. an explicit
error pointer or valid pointer not NULL, adapt to renames in earlier
patches, fixed some checkpatch issues.]
Acked-by: Mike Turquette <[email protected]>
Signed-off-by: Stephen Warren <[email protected]>
3 files changed