[PATCH] s390: fix build failure

[Sudip Mukherjee <sudipm.mukherjee@gmail.com>]

s390 defconfig and allmodconfig fails with the error:
kernel/seccomp.c: In function '__secure_computing_strict':
kernel/seccomp.c:526:3: error: implicit declaration of function
				'get_compat_mode1_syscalls'

The retrieval of compat syscall numbers were moved into inline function
defined in asm-generic header but the asm-generic header was not being
used by s390.

Fixes: 5adddb612ca1 ("seccomp: Get compat syscalls from asm-generic header")
Cc: Matt Redfearn <matt.redfearn@imgtec.com>
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@codethink.co.uk>
---

Tested with s390 defconfig and allmodconfig build.
Build logs of next-20160401 are at:
https://travis-ci.org/sudipm-mukherjee/parport/jobs/119983952 (allmodconfig)
and
https://travis-ci.org/sudipm-mukherjee/parport/jobs/119983909 (defconfig)

 arch/s390/include/asm/seccomp.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/s390/include/asm/seccomp.h b/arch/s390/include/asm/seccomp.h
index 781a9cf..e10f833 100644
--- a/arch/s390/include/asm/seccomp.h
+++ b/arch/s390/include/asm/seccomp.h
@@ -13,4 +13,6 @@
 #define __NR_seccomp_exit_32	__NR_exit
 #define __NR_seccomp_sigreturn_32 __NR_sigreturn
 
+#include <asm-generic/seccomp.h>
+
 #endif	/* _ASM_S390_SECCOMP_H */
-- 
2.1.4