docs: cpu-freq: convert cpu-drivers.txt to ReST

- Add a SPDX header;
- Add a document title, based on the original contents of
  cpu-freq/index.txt;
- Use lists where needed;
- Comment out the existing text-only index;
- Adjust some title marks;
- Add table markups;
- Add notes markups;
- Mark literal blocks as such;
- use ``foo`` for literal texts;
- Some whitespace fixes and new line breaks;
- Add it to cpu-freq/index.rst.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

1 files changed, 1 insertions, 0 deletions

diff --git a/Documentation/cpu-freq/index.rst b/Documentation/cpu-freq/index.rst
index 53501c58f41d..fcc58b2eee01 100644
--- a/Documentation/cpu-freq/index.rst
+++ b/Documentation/cpu-freq/index.rst
@@ -15,6 +15,7 @@ Author: Dominik Brodowski  <linux@brodo.de>
    :maxdepth: 1
 
    core
+   cpu-drivers
 
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