docs: conf: don't rely on cwd to get documentation location
Instead of relying that Sphinx will be called from Documentation/
dir, pick the location based on __file__.
Suggested-by: Jani Nikula <jani.nikula@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <34c38718dfade91ff6f7afca5e9c1705ba253c97.1768838938.git.mchehab+huawei@kernel.org>
authored by