Stub out sysinfo syscall

pk/syscall.c

@@ -639,6 +639,7 @@ long do_syscall(long a0, long a1, long a2, long a3, long a4, long a5, unsigned l
     [SYS_set_tid_address] = sys_stub_nosys,
     [SYS_set_robust_list] = sys_stub_nosys,
     [SYS_madvise] = sys_stub_nosys,
+    [SYS_sysinfo] = sys_stub_nosys,
   };
 
   const static void* old_syscall_table[] = {

pk/syscall.h

@@ -31,6 +31,7 @@
 #define SYS_getgid 176
 #define SYS_getegid 177
 #define SYS_gettid 178
+#define SYS_sysinfo 179
 #define SYS_mmap 222
 #define SYS_munmap 215
 #define SYS_mremap 216