MAINTAINERS: add an explicit entry for cx88

While this file was always maintained, there was no explicit entry
for it.

There aren't many things happening at cx88 side for a long time:
Driver works, and it is stable. When new patches are submitted,
they're new boards addition for hardware I don't have.

So, add a new entry with status equal to Odd fixes to better
reflect it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

MAINTAINERS

@@ -2151,6 +2151,15 @@ S:	Maintained
 F:	Documentation/video4linux/cx18.txt
 F:	drivers/media/pci/cx18/
 
+CX88 VIDEO4LINUX DRIVER
+M:	Mauro Carvalho Chehab <mchehab@redhat.com>
+L:	linux-media@vger.kernel.org
+W:	http://linuxtv.org
+T:	git git://linuxtv.org/media_tree.git
+S:	Odd fixes
+F:	Documentation/video4linux/cx88/
+F:	drivers/media/pci/cx88/
+
 CXD2820R MEDIA DRIVER
 M:	Antti Palosaari <crope@iki.fi>
 L:	linux-media@vger.kernel.org