Fix black box in Dainiji_Super_Robot_Taisen_Z_Hakaihen

It is colortest regression fix.

Before
![screen00003](https://f.cloud.github.com/assets/3000282/827431/7a8996a8-f09c-11e2-91db-53cf734856ee.jpg)


After 
![screen00002](https://f.cloud.github.com/assets/3000282/827432/7f35f606-f09c-11e2-8952-de4f5cd19285.jpg)