voyager: use struct instead of PARAM

Use struct boot_params instead of PARAM + 0xoffsets.
Fixes one of many Voyager build problems.

arch/x86/kernel/setup_32.c:543: error: 'PARAM' undeclared (first use in this function)
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

include/asm-x86/mach-voyager/setup_arch.h

 #include <asm/voyager.h>
-#define VOYAGER_BIOS_INFO ((struct voyager_bios_info *)(PARAM+0x40))
+#include <asm/setup_32.h>
+#define VOYAGER_BIOS_INFO ((struct voyager_bios_info *) \
+			(&boot_params.apm_bios_info))
 
 /* Hook to call BIOS initialisation function */