Fix hardware keys for slim evita

Your device tree is very old and really should be upgraded. I would suggest forking Cyanogenmods current tree to include dependant repositories. A lot has been moved since this one was created and honestle im surprised this one even builds. You must have commented out a lot in the s4common repo because all that should be here is the hardware button config.
Merge pull request #1 from sdroyds/patch-1

Fix hardware keys for slim evita