armada: introduce dev_armada plugin

Also retires old marvell plugin.

Change-Id: Icedec11f5661909058fdfe8d5fc455306adafacd
Type: feature
Signed-off-by: Damjan Marion <damarion@cisco.com>
diff --git a/MAINTAINERS b/MAINTAINERS
index 4a65b35..c6dbd8b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -500,10 +500,10 @@
 M:	Damjan Marion <damarion@cisco.com>
 F:	src/plugins/memif/
 
-Plugin - Marvell MUSDK device driver
-I:	marvell
+Plugin - Marvell Armada device driver
+I:	armada
 M:	Damjan Marion <damarion@cisco.com>
-F:	src/plugins/marvell/
+F:	src/plugins/dev_armada/
 
 Plugin - performance counter
 I:	perfmon