fix wrong comparison in test_dr_cmp for ca_system_t

Signed-off-by: Jean-Paul Saman <jpsaman@videolan.org>

misc/test_dr_cmp.h

@@ -35,6 +35,6 @@ static int compare_dvbpsi_ca_system_t(const void *s1, const void *s2)
 {
     const dvbpsi_ca_system_t *a = s1, *b = s2;
     if(a->i_ca_system_id < b->i_ca_system_id) return -1;
-    else if(a->i_ca_system_id < b->i_ca_system_id) return 1;
+    else if(a->i_ca_system_id > b->i_ca_system_id) return 1;
     else return 0;
 }