Evas: Filter: Brightness: Fix clamp ranges, and don't double negate
Evas: Filter: Brightness: Fix clamp ranges, and don't double negate

Basically it's a clamp function...

git-svn-id: 6d771e449150288cc513807b7f4d2af31e9482bd@59068 7cbeb6ba-43b4-40fd-8cce-4c39aea84d33

TizenChameleon/evas,TizenChameleon/evas,TizenChameleon/uifw-evas,TizenChameleon/evas,TizenChameleon/uifw-evas,TizenChameleon/uifw-evas,TizenChameleon/uifw-evas,TizenChameleon/evas