board: dragonboard410c: Update maintainers

board: dragonboard410c: Update maintainers

Ramon has been inactive on the U-Boot mailing list for over a year now and
the DB410c port has not been updated much lately. I've been doing most of
the DB410c-specific fixes/rework lately and try to test it every now and
then, so add myself as new maintainer. Also add Sam as reviewer, since he's
been doing lots of testing and reviews for MSM8916 recently.

Cc: Sam Day <me@samcday.com>
Cc: Ramon Fried <rfried.dev@gmail.com>
Signed-off-by: Stephan Gerhold <stephan.gerhold@linaro.org>
Acked-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by:
Link: https://lore.kernel.org/r/20250407-db410c-fixes-v1-13-524aefbc8bb4@linaro.org
Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>