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Dongchun's e-mail is no longer active and he hasn't given a new one: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>

MAINTAINERS

@@ -6245,9 +6245,8 @@ F:	Documentation/devicetree/bindings/media/i2c/dongwoon,dw9714.yaml
 F:	drivers/media/i2c/dw9714.c
 
 DONGWOON DW9768 LENS VOICE COIL DRIVER
-M:	Dongchun Zhu <dongchun.zhu@mediatek.com>
 L:	linux-media@vger.kernel.org
-S:	Maintained
+S:	Orphan
 T:	git git://linuxtv.org/media_tree.git
 F:	Documentation/devicetree/bindings/media/i2c/dongwoon,dw9768.yaml
 F:	drivers/media/i2c/dw9768.c
@@ -15555,9 +15554,8 @@ T:	git git://linuxtv.org/media_tree.git
 F:	drivers/media/i2c/ov01a10.c
 
 OMNIVISION OV02A10 SENSOR DRIVER
-M:	Dongchun Zhu <dongchun.zhu@mediatek.com>
 L:	linux-media@vger.kernel.org
-S:	Maintained
+S:	Orphan
 T:	git git://linuxtv.org/media_tree.git
 F:	Documentation/devicetree/bindings/media/i2c/ovti,ov02a10.yaml
 F:	drivers/media/i2c/ov02a10.c