AMD boards: Fix includes for microcode updates

No ROMCC involved, no need to include .c files in romstage.c.

Change-Id: I8a2aaf84276f2931d0a0557ba29e359fa06e2fba
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/4501
Tested-by: build bot (Jenkins)
Reviewed-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/cpu/amd/microcode/Makefile.inc

@@ -1 +1,2 @@
 ramstage-y += microcode.c
+romstage-$(CONFIG_UPDATE_CPU_MICROCODE) += microcode.c

src/cpu/amd/microcode/microcode.c

@@ -17,17 +17,10 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
-#ifndef __ROMCC__
 #include <stdint.h>
 #include <console/console.h>
 #include <cpu/x86/msr.h>
 #include <cpu/amd/microcode.h>
-#endif
-
-#ifndef __PRE_RAM__
-#include <cpu/cpu.h>
-#include <cpu/x86/cache.h>
-#endif
 
 struct microcode {
 	u32 date_code;