frv: convert frv 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/frv/kernel/head.S

@@ -9,6 +9,7 @@
  * 2 of the License, or (at your option) any later version.
  */
 
+#include <linux/init.h>
 #include <linux/threads.h>
 #include <linux/linkage.h>
 #include <asm/thread_info.h>
@@ -27,7 +28,7 @@
 #   command line string
 #
 ###############################################################################
-	.section	.text.head,"ax"
+	__HEAD
 	.balign		4
 
 	.globl		_boot, __head_reference

arch/frv/kernel/vmlinux.lds.S

@@ -26,7 +26,7 @@ SECTIONS
 
   _sinittext = .;
   .init.text : {
-	*(.text.head)
+	HEAD_TEXT
 #ifndef CONFIG_DEBUG_INFO
 	INIT_TEXT
 	EXIT_TEXT