mn10300: convert to use __HEAD and HEAD_TEXT macros.

This has the consequence of changing the section name use for head
code from ".text.head" to ".head.text".  Since this commit changes all
users in the architecture, this change should be harmless.
Signed-off-by: Tim Abbott <tabbott@mit.edu>
Cc: David Howells <dhowells@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

arch/mn10300/kernel/head.S

@@ -9,6 +9,7 @@
  * 2 of the Licence, or (at your option) any later version.
  */
 
+#include <linux/init.h>
 #include <linux/threads.h>
 #include <linux/linkage.h>
 #include <linux/serial_reg.h>
@@ -19,7 +20,7 @@
 #include <asm/param.h>
 #include <unit/serial.h>
 
-	.section .text.head,"ax"
+	__HEAD
 
 ###############################################################################
 #

arch/mn10300/kernel/vmlinux.lds.S

@@ -27,10 +27,7 @@ SECTIONS
   _stext = .;
   _text = .;			/* Text and read-only data */
   .text : {
-	*(
-	.text.head
-	.text
-	)
+	HEAD_TEXT
 	TEXT_TEXT
 	SCHED_TEXT
 	LOCK_TEXT