mv: seperate kirkwood and armada from common setting

Since there are lots of difference between kirkwood and armada series,
it is better to seperate them but still keep the most common file
shared by all marvell platform in the mv-common configure file.

This patch move the kirkwood only driver definitoin in mv-common to
the <soc_name>/config.h.

This patch is tested with compilation for armada100 and guruplug.

Signed-off-by: Lei Wen <leiwen@marvell.com>
diff --git a/README b/README
index 37eda11..21cd71b 100644
--- a/README
+++ b/README
@@ -319,6 +319,11 @@
 			CONFIG_SYS_PQ2FADS	- PQ2FADS-ZU or PQ2FADS-VR
 			CONFIG_SYS_8272ADS	- MPC8272ADS
 
+- Marvell Family Member
+		CONFIG_SYS_MVFS		- define it if you want to enable
+					  multiple fs option at one time
+					  for marvell soc family
+
 - MPC824X Family Member (if CONFIG_MPC824X is defined)
 		Define exactly one of
 		CONFIG_MPC8240, CONFIG_MPC8245