media: MAINTAINERS: Add myself as maintainer of the Amlogic GE2D driver

Add new entry to MAINTAINERS.

[hverkuil: added changelog]

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>