s390/uprobes: fix kprobes dependency

If kprobes is disabled uprobes will not compile.
Fix this by including the correct header files.

Signed-off-by: Jan Willeke <willeke@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
diff --git a/arch/s390/lib/probes.c b/arch/s390/lib/probes.c
index c5d64a0..ae90e1a 100644
--- a/arch/s390/lib/probes.c
+++ b/arch/s390/lib/probes.c
@@ -4,7 +4,7 @@
  *    Copyright IBM Corp. 2014
  */
 
-#include <linux/kprobes.h>
+#include <asm/kprobes.h>
 #include <asm/dis.h>
 
 int probe_is_prohibited_opcode(u16 *insn)