media: MAINTAINERS: Change maintainers for mipid02 driver

Mickael left the company and is not willing to keep maintainership.
Add Sylvain and myself as maintainers of mipid02 driver.

Signed-off-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>