km: modify Kconfig file organization for KM boards

As preparation for the upcoming transferring of configurations from header
files to Kconfig, a common Kconfig file for all KM boards was created. For
the moment, it only sources the other three, more specific, Kconfig files.
Therefore, the architecture Kconfig files now include the common Kconfig
file. Also, the configuration selection for KM boards was moved from the
architecture Kconfig files to the board specific Kconfig files.

Signed-off-by: Pascal Linder <pascal.linder@edu.hefr.ch>
Signed-off-by: Holger Brunck <holger.brunck@ch.abb.com>
Cc: Mario Six <mario.six@gdsys.cc>
Cc: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/arch/arm/mach-kirkwood/Kconfig b/arch/arm/mach-kirkwood/Kconfig
index 7c41703..2f68092 100644
--- a/arch/arm/mach-kirkwood/Kconfig
+++ b/arch/arm/mach-kirkwood/Kconfig
@@ -32,11 +32,8 @@
 	bool "iconnect Board"
 
 config TARGET_KM_KIRKWOOD
-	bool "KM_KIRKWOOD Board"
-	select BOARD_LATE_INIT
-	imply CMD_CRAMFS
-	imply CMD_DIAG
-	imply FS_CRAMFS
+	bool "KM Kirkwood Board"
+	select VENDOR_KM
 
 config TARGET_NET2BIG_V2
 	bool "LaCie 2Big Network v2 NAS Board"
@@ -82,7 +79,7 @@
 source "board/cloudengines/pogo_e02/Kconfig"
 source "board/d-link/dns325/Kconfig"
 source "board/iomega/iconnect/Kconfig"
-source "board/keymile/km_arm/Kconfig"
+source "board/keymile/Kconfig"
 source "board/LaCie/net2big_v2/Kconfig"
 source "board/LaCie/netspace_v2/Kconfig"
 source "board/raidsonic/ib62x0/Kconfig"