system: core: Add Sensors group

Defining group for sensors.

CRs-Fixed: 431081

Change-Id: I58151f2fd727bded1b16adb3caeac85e27e44036
core: Correct the sensors UID

Change-Id: I4e456de6dfa6612caf9dcef751f39e9e478a775e
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_system_core into kitkat