[media] vimc: Virtual Media Controller core, capture and sensor

First version of the Virtual Media Controller.
Add a simple version of the core of the driver, the capture and
sensor nodes in the topology, generating a grey image in a hardcoded
format.

Signed-off-by: Helen Koike <helen.koike@collabora.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[hans.verkuil@cisco.com: fix small typo in Kconfig]

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 0a16e1c..7d3b999 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -13407,6 +13407,14 @@
 S:	Maintained
 F:	drivers/media/platform/vivid/*
 
+VIMC VIRTUAL MEDIA CONTROLLER DRIVER
+M:	Helen Koike <helen.koike@collabora.com>
+L:	linux-media@vger.kernel.org
+T:	git git://linuxtv.org/media_tree.git
+W:	https://linuxtv.org
+S:	Maintained
+F:	drivers/media/platform/vimc/*
+
 VLYNQ BUS
 M:	Florian Fainelli <f.fainelli@gmail.com>
 L:	openwrt-devel@lists.openwrt.org (subscribers-only)