Disintegrate asm/system.h for S390

Disintegrate asm/system.h for S390.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-s390@vger.kernel.org
diff --git a/arch/s390/oprofile/hwsampler.c b/arch/s390/oprofile/hwsampler.c
index 12bea05..59c9278 100644
--- a/arch/s390/oprofile/hwsampler.c
+++ b/arch/s390/oprofile/hwsampler.c
@@ -18,6 +18,7 @@
 #include <linux/oom.h>
 #include <linux/oprofile.h>
 
+#include <asm/facility.h>
 #include <asm/lowcore.h>
 #include <asm/irq.h>