i9305: Open source sensors

Include the open source libsensors from the i9300

Change-Id: I9c1ebe3124e69ae0fb1237e3df242a39ebc3a852
Merge "i9305: Open source sensors" into cm-11.0
Merge branch 'cm-11.0' of github.com:CyanogenMod/android_device_samsung_i9305 into cm-11.0