cpufreq: Fix docstring for `cpu` parameter

`cpu` can be an `int`, _or_ the full CPU name used by sysfs.
1 file changed
tree: 6e65f354f5ace9f1f2fb78f02a7354799b2e1a4b
  1. devlib/
  2. doc/
  3. src/
  4. .gitignore
  5. README.rst
  6. setup.py