OPP updates for 6.8

- Fix _set_required_opps when opp is NULL (Bryan O'Donoghue).
- ti: Use device_get_match_data() (Rob Herring).
- Minor cleanups around OPP level and other parts and call
  dev_pm_opp_set_opp() recursively for required OPPs (Viresh Kumar).
OPP: Rename 'rate_clk_single'

The field's name isn't clear enough. Rename it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
2 files changed