litest-selftest.c: In function ‘litest_ptr_eq_notrigger’:
litest-selftest.c:172:10: warning: initialization makes integer from pointer
without a cast [-Wint-conversion]
  int c = NULL;
          ^
litest-selftest.c:173:10: warning: initialization makes integer from pointer
without a cast [-Wint-conversion]
  int d = NULL;
          ^

Signed-off-by: Peter Hutterer <peter.hutterer@who-t.net>