[PATCH] Kdump: i386 compiler warning fix

Fixes a compilation warning message in i386
Signed-off-by: NVivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

include/asm-i386/kexec.h

@@ -3,6 +3,7 @@
 
 #include <asm/fixmap.h>
 #include <asm/ptrace.h>
+#include <asm/string.h>
 
 /*
  * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.