Move compiler.h to commonlib

Its spreading copies got out of sync. And as it is not a standard header
but used in commonlib code, it belongs into commonlib. While we are at
it, always include it via GCC's `-include` switch.

Some Windows and BSD quirk handling went into the util copies. We always
guard from redefinitions now to prevent further issues.

Change-Id: I850414e6db1d799dce71ff2dc044e6a000ad2552
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/28927
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

src/drivers/intel/fsp2_0/graphics.c

@@ -10,7 +10,6 @@
  * (at your option) any later version.
  */
 
-#include <compiler.h>
 #include <cbfs.h>
 #include <console/console.h>
 #include <fsp/util.h>

src/drivers/intel/fsp2_0/hob_display.c

@@ -9,7 +9,6 @@
  * (at your option) any later version.
  */
 
-#include <compiler.h>
 #include <console/console.h>
 #include <fsp/util.h>
 

src/drivers/intel/fsp2_0/include/fsp/upd.h

@@ -12,8 +12,6 @@
 #ifndef _FSP2_0_UPD_H_
 #define _FSP2_0_UPD_H_
 
-#include <compiler.h>
-
 struct FSP_UPD_HEADER {
 	///
 	/// UPD Region Signature. This signature will be

src/drivers/intel/fsp2_0/include/fsp/util.h

@@ -13,7 +13,6 @@
 #ifndef _FSP2_0_UTIL_H_
 #define _FSP2_0_UTIL_H_
 
-#include <compiler.h>
 #include <boot/coreboot_tables.h>
 #include <commonlib/region.h>
 #include <arch/cpu.h>

src/drivers/intel/fsp2_0/memory_init.c

@@ -11,7 +11,6 @@
  * (at your option) any later version.
  */
 
-#include <compiler.h>
 #include <security/vboot/antirollback.h>
 #include <arch/io.h>
 #include <arch/cpu.h>

src/drivers/intel/fsp2_0/notify.c

@@ -12,7 +12,6 @@
 
 #include <arch/cpu.h>
 #include <bootstate.h>
-#include <compiler.h>
 #include <console/console.h>
 #include <fsp/util.h>
 #include <soc/intel/common/util.h>

src/drivers/intel/fsp2_0/upd_display.c

@@ -10,7 +10,6 @@
  */
 
 #include <arch/cpu.h>
-#include <compiler.h>
 #include <console/console.h>
 #include <fsp/util.h>
 #include <lib.h>