ARM: kirkwood: reduce dependence of including platform file

For files like the drivers/serial/serial.c, it must include the
platform file, as the CONFIG_SYS_NS16550_COM1 must reference to the
definition in the platform definition files.

Include the platform definition file in the config file, so that it
would decouple the dependence for the driver files.

Signed-off-by: Lei Wen <leiwen@marvell.com>
diff --git a/board/Marvell/guruplug/guruplug.c b/board/Marvell/guruplug/guruplug.c
index 1f0e67a..057c558 100644
--- a/board/Marvell/guruplug/guruplug.c
+++ b/board/Marvell/guruplug/guruplug.c
@@ -24,6 +24,7 @@
 
 #include <common.h>
 #include <miiphy.h>
+#include <asm/arch/cpu.h>
 #include <asm/arch/kirkwood.h>
 #include <asm/arch/mpp.h>
 #include "guruplug.h"
diff --git a/board/Marvell/mv88f6281gtw_ge/mv88f6281gtw_ge.c b/board/Marvell/mv88f6281gtw_ge/mv88f6281gtw_ge.c
index 80fd20b..4c41f3b 100644
--- a/board/Marvell/mv88f6281gtw_ge/mv88f6281gtw_ge.c
+++ b/board/Marvell/mv88f6281gtw_ge/mv88f6281gtw_ge.c
@@ -26,6 +26,7 @@
 
 #include <common.h>
 #include <netdev.h>
+#include <asm/arch/cpu.h>
 #include <asm/arch/kirkwood.h>
 #include <asm/arch/mpp.h>
 #include "mv88f6281gtw_ge.h"
diff --git a/board/Marvell/openrd/openrd.c b/board/Marvell/openrd/openrd.c
index 87939de..2a10e69 100644
--- a/board/Marvell/openrd/openrd.c
+++ b/board/Marvell/openrd/openrd.c
@@ -29,6 +29,7 @@
 
 #include <common.h>
 #include <miiphy.h>
+#include <asm/arch/cpu.h>
 #include <asm/arch/kirkwood.h>
 #include <asm/arch/mpp.h>
 #include "openrd.h"
diff --git a/board/Marvell/rd6281a/rd6281a.c b/board/Marvell/rd6281a/rd6281a.c
index ecdea82..9c768bf 100644
--- a/board/Marvell/rd6281a/rd6281a.c
+++ b/board/Marvell/rd6281a/rd6281a.c
@@ -25,6 +25,7 @@
 #include <common.h>
 #include <miiphy.h>
 #include <netdev.h>
+#include <asm/arch/cpu.h>
 #include <asm/arch/kirkwood.h>
 #include <asm/arch/mpp.h>
 #include "rd6281a.h"
diff --git a/board/Marvell/sheevaplug/sheevaplug.c b/board/Marvell/sheevaplug/sheevaplug.c
index d7dc80c..71e6793 100644
--- a/board/Marvell/sheevaplug/sheevaplug.c
+++ b/board/Marvell/sheevaplug/sheevaplug.c
@@ -24,6 +24,7 @@
 
 #include <common.h>
 #include <miiphy.h>
+#include <asm/arch/cpu.h>
 #include <asm/arch/kirkwood.h>
 #include <asm/arch/mpp.h>
 #include "sheevaplug.h"