syslog: include sys/sycall.h

This fixes syscall() being undeclared when building for Android.

Signed-off-by: Steven Jackson <sj@oscode.net>
Acked-by: Cyril Hrubis <chrubis@suse.cz>
diff --git a/testcases/kernel/syscalls/syslog/syslog11.c b/testcases/kernel/syscalls/syslog/syslog11.c
index 0cae139..8d1f2c8 100644
--- a/testcases/kernel/syscalls/syslog/syslog11.c
+++ b/testcases/kernel/syscalls/syslog/syslog11.c
@@ -69,6 +69,7 @@
 #include <sys/types.h>
 #include <unistd.h>
 #include <linux/unistd.h>
+#include <sys/syscall.h>
 #include "test.h"
 
 #define UNEXP_RET_VAL	-1
diff --git a/testcases/kernel/syscalls/syslog/syslog12.c b/testcases/kernel/syscalls/syslog/syslog12.c
index e0d21d8..883c3eb 100644
--- a/testcases/kernel/syscalls/syslog/syslog12.c
+++ b/testcases/kernel/syscalls/syslog/syslog12.c
@@ -79,6 +79,7 @@
 #include <unistd.h>
 #include <signal.h>
 #include <linux/unistd.h>
+#include <sys/syscall.h>
 #include "test.h"
 
 #define EXP_RET_VAL	-1