Merge branch 'pm-cpufreq'

Merge Rust support for cpufreq and OPP, a new Rust-based cpufreq-dt
driver, an SCMI cpufreq driver cleanup, and an ACPI cpufreq driver
regression fix:

 - Add Rust abstractions for CPUFreq framework (Viresh Kumar).

 - Add Rust abstractions for OPP framework (Viresh Kumar).

 - Add basic Rust abstractions for Clk and Cpumask frameworks (Viresh
   Kumar).

 - Clean up the SCMI cpufreq driver somewhat (Mike Tipton).

 - Use KHz as the nominal_freq units in get_max_boost_ratio() in the
   ACPI cpufreq driver (iGautham Shenoy).

* pm-cpufreq:
  acpi-cpufreq: Fix nominal_freq units to KHz in get_max_boost_ratio()
  rust: opp: Move `cfg(CONFIG_OF)` attribute to the top of doc test
  rust: opp: Make the doctest example depend on CONFIG_OF
  cpufreq: scmi: Skip SCMI devices that aren't used by the CPUs
  cpufreq: Add Rust-based cpufreq-dt driver
  rust: opp: Extend OPP abstractions with cpufreq support
  rust: cpufreq: Extend abstractions for driver registration
  rust: cpufreq: Extend abstractions for policy and driver ops
  rust: cpufreq: Add initial abstractions for cpufreq framework
  rust: opp: Add abstractions for the configuration options
  rust: opp: Add abstractions for the OPP table
  rust: opp: Add initial abstractions for OPP framework
  rust: cpu: Add from_cpu()
  rust: macros: enable use of hyphens in module names
  rust: clk: Add initial abstractions
  rust: clk: Add helpers for Rust code
  MAINTAINERS: Add entry for Rust cpumask API
  rust: cpumask: Add initial abstractions
  rust: cpumask: Add few more helpers