hammerhead: Use QCOM PowerHAL

Change-Id: Ia40f84d2eb511dd1c7c0521706422ddf68e51342
hammerhead: Update build fingerprint and description to KTU84P

Change-Id: Idf7b0bf26acddc7333ce23322be468473c4fc626
Merge pull request #6 from CyanogenMod/cm-11.0

Merge into kk4.4