5042 stop using deprecated atomic functions

@@ -896,11 +896,11 @@
         }
 
         do {
                 old = color_start_current;
                 new = old + (color_start_stride << (vac_shift - MMU_PAGESHIFT));
-        } while (cas32(&color_start_current, old, new) != old);
+        } while (atomic_cas_32(&color_start_current, old, new) != old);
 
         return ((uint_t)(new));
 }
 
 /*