clk: tegra: Introduce divider mask and shift helpers
clk: tegra: Introduce divider mask and shift helpers

Add div{m,n,p}_shift() and div{m,n,p}_mask_shifted() helpers to make the
code that modifies the m-, n- and p-divider fields of PLLs shorter and
easier to read.

Signed-off-by: Thierry Reding <3055038c414aef68bf32c33b8118623e7554e0f2@nvidia.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs