mb/lenvovo/*: Clean mainboard.c and devicetree

* Move board specific SPI registers to devicetree
* Remove unused headers
* Remove obsolete methods
* Fix coding style
* Fix Thinkpad L520 SPI lvscc register

Except for Thinkpad L520, no functional change has been done,
just moving stuff around.

Change-Id: I692a5632030fe2fedbe9a90f86251000f1360fb2
Signed-off-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-on: https://review.coreboot.org/19494
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
diff --git a/src/mainboard/lenovo/x60/mainboard.c b/src/mainboard/lenovo/x60/mainboard.c
index 6661a5f..81175ec 100644
--- a/src/mainboard/lenovo/x60/mainboard.c
+++ b/src/mainboard/lenovo/x60/mainboard.c
@@ -15,26 +15,17 @@
  * GNU General Public License for more details.
  */
 
-#include <console/console.h>
-#include <device/device.h>
-#include <arch/acpi.h>
-#include <arch/io.h>
-#include <delay.h>
-#include <string.h>
 #include <device/pci_def.h>
-#include <device/pci_ops.h>
 #include <device/pci_ids.h>
-#include <arch/interrupt.h>
-#include <ec/lenovo/pmh7/pmh7.h>
+#include <device/device.h>
+#include <arch/io.h>
 #include <ec/acpi/ec.h>
-#include <ec/lenovo/h8/h8.h>
 #include <northbridge/intel/i945/i945.h>
 #include <pc80/mc146818rtc.h>
 #include "dock.h"
-#include <arch/x86/include/arch/acpigen.h>
-#include <smbios.h>
 #include <drivers/intel/gma/int15.h>
-#include "drivers/lenovo/lenovo.h"
+#include <drivers/lenovo/lenovo.h>
+#include <arch/acpigen.h>
 
 #define PANEL INT15_5F35_CL_DISPLAY_DEFAULT
 
@@ -88,7 +79,9 @@
 		ec_write(0x0c, 0x88);
 	}
 
-	install_intel_vga_int15_handler(GMA_INT15_ACTIVE_LFP_INT_LVDS, GMA_INT15_PANEL_FIT_DEFAULT, PANEL, 3);
+	install_intel_vga_int15_handler(GMA_INT15_ACTIVE_LFP_INT_LVDS,
+					GMA_INT15_PANEL_FIT_DEFAULT,
+					PANEL, 3);
 
 	/* If we're resuming from suspend, blink suspend LED */
 	if (acpi_is_wakeup_s3())