voyager: use correct header file name

From: Randy Dunlap <[email protected]>

Fix header file name for Voyager build.

In file included from arch/x86/kernel/setup_32.c:61:
include/asm-x86/mach-voyager/setup_arch.h:2:26: error: asm/setup_32.h: No such file or directory make[1]: *** [arch/x86/kernel/setup_32.o] Error 1

---
 include/asm-x86/mach-voyager/setup_arch.h |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

@@ -1,5 +1,5 @@
 #include <asm/voyager.h>
-#include <asm/setup_32.h>
+#include <asm/setup.h>
 #define VOYAGER_BIOS_INFO ((struct voyager_bios_info *) \
 			(&boot_params.apm_bios_info))