MAINTAINERS: scale modules with more reviewers

MAINTAINERS: scale modules with more reviewers

We're looking to add Rust module support, and I don't speak
Rust yet. The compromise was reached that in order to scale we'd
get volunteers committed from the Rust community willing to review
both Rust and C code for modules so we can ensure we get proper
reviews for both parts of the code and so that we can scale.

Add those who have stepped up to help.

Acked-by: Sami Tolvanen <samitolvanen@google.com>
Acked-by: Petr Pavlu <petr.pavlu@suse.com>
Acked-by: Daniel Gomez <da.gomez@samsung.com>
Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>