media: MAINTAINERS: Orphan dw9768 and ov02a10 drivers
Dongchun's e-mail is no longer active and he hasn't given a new one:
The following message to <dongchun.zhu@mediatek.com> was
undeliverable.
The reason for the problem:
5.1.0 - Unknown address error 550-'Relaying mail to
dongchun.zhu@mediatek.com is not allowed'
Mark the drivers as orphaned.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>