x86: compressed head_32 - use ENTRY,ENDPROC macros

Impact: clenaup

Linker script will put startup_32 at predefined
address so using startup_32 will not bloat the
code size.
Signed-off-by: NCyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>

arch/x86/boot/compressed/head_32.S

@@ -30,9 +30,7 @@
 #include <asm/asm-offsets.h>
 
 .section ".text.head","ax",@progbits
-	.globl startup_32
-
-startup_32:
+ENTRY(startup_32)
 	cld
 	/* test KEEP_SEGMENTS flag to see if the bootloader is asking
 	 * us to not reload segments */
@@ -113,6 +111,8 @@ startup_32:
  */
 	leal relocated(%ebx), %eax
 	jmp *%eax
+ENDPROC(startup_32)
+
 .section ".text"
 relocated: