Hack current texture width/height to be multiple 2 of framebuffer 


It is a dirty hack and works for some games that required width and height to be 960 and 544 respectivity.

This fixes the the graphic issues before Shin Sangoku Musou Multi Raid
![before](https://f.cloud.github.com/assets/3000282/657956/0527423a-d5a2-11e2-81d1-9bb9f18aa9a4.jpg)

![fix](https://f.cloud.github.com/assets/3000282/657957/07c6a76a-d5a2-11e2-993b-d8c8f3e136c8.jpg)