[POWERPC] Fix 40x build

Remove inclusion of __res on 40x.  We don't need it in arch/powerpc
Signed-off-by: NJosh Boyer <jwboyer@linux.vnet.ibm.com>
Acked-by: NDavid Gibson <david@gibson.dropbear.id.au>

arch/powerpc/kernel/head_40x.S

@@ -35,7 +35,6 @@
 #include <asm/page.h>
 #include <asm/mmu.h>
 #include <asm/pgtable.h>
-#include <asm/ibm4xx.h>
 #include <asm/cputable.h>
 #include <asm/thread_info.h>
 #include <asm/ppc_asm.h>

arch/powerpc/kernel/ppc_ksyms.c

@@ -180,7 +180,7 @@ EXPORT_SYMBOL(cacheable_memcpy);
 EXPORT_SYMBOL(cpm_install_handler);
 EXPORT_SYMBOL(cpm_free_handler);
 #endif /* CONFIG_8xx */
-#if defined(CONFIG_8xx) || defined(CONFIG_40x)
+#if defined(CONFIG_8xx)
 EXPORT_SYMBOL(__res);
 #endif