FM : Add FM Radio support

     Add fm_dl service, set uevent permissions,
     and add hardware_qcom_fm to cm.dependencies

Change-Id: I6067de62a3f4aa294cdba8bea3c7470943cd6b49
Merge "FM : Add FM Radio support" into cm-11.0
Merge pull request #5 from CyanogenMod/cm-11.0

merge up to date changes