wined3d: Validate STATE_BASEVERTEXINDEX in validate_state_table().

dlls/wined3d/state.c

@@ -5726,6 +5726,7 @@ static void validate_state_table(struct StateEntry *state_table)
         STATE_SCISSORRECT,
         STATE_FRONTFACE,
         STATE_POINTSPRITECOORDORIGIN,
+        STATE_BASEVERTEXINDEX,
     };
     unsigned int i, current;