Better handle dependencies on Sphinx extensions

Sphinx has its own way to identify the need of rebuilding the documentation. It means that extensions need to use an internal API in order to notify about the need to consider other files.

The kerneldoc.py extension already does that, maintainers_include.py doesn't need (as it uses an API that internally does that), and kfigure.py does it on a different way. So, those are already safe.

However, other extensions don't notify nor implement their own checks, so, when a file that was parsed by them is changed, the corresponding documentation won't be rebuilt.

This series add support for it for ABI, features and kernel-include.

---

v3:
- Changed the meta-tag used when --enable-lineno and --enable-fname are used at the scripts that generate ReST output.

Mauro Carvalho Chehab (6):
scripts/get_feat.pl: allow output the parsed file names
docs: kernel_feat.py: add build dependencies
docs: kernel_abi.py: add sphinx build dependencies
docs: kernel_include.py: add sphinx build dependencies scripts/get_abi: change the file/line number meta info scripts/kernel-doc: change the line number meta info

 Documentation/sphinx/kernel_abi.py     |  6 +++++-
 Documentation/sphinx/kernel_feat.py    | 20 ++++++++++++++++++--
 Documentation/sphinx/kernel_include.py |  3 +++
 Documentation/sphinx/kerneldoc.py      |  2 +-
 scripts/get_abi.pl                     |  4 ++--
 scripts/get_feat.pl                    | 11 +++++++++++
 scripts/kernel-doc                     |  4 ++--
 7 files changed, 42 insertions(+), 8 deletions(-)

2.35.1