powerpc: Make sure _etext is after all kernel text

This makes core_kernel_text() (and therefore kernel_text_address())
return the correct result.  Currently all the __devinit routines (at
least) will not be considered to be kernel text.

This is just a quick fix for 2.6.27 - hopefully we will be able to fix
this better in 2.6.28.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

arch/powerpc/kernel/vmlinux.lds.S

@@ -66,10 +66,11 @@ SECTIONS
 		__got2_end = .;
 #endif /* CONFIG_PPC32 */
 
+	} :kernel
+
 	. = ALIGN(PAGE_SIZE);
 	_etext = .;
 	PROVIDE32 (etext = .);
-	} :kernel
 
 	/* Read-only data */
 	RODATA