hammerhead: Update build fingerprint and description to KTU84P

Change-Id: Idf7b0bf26acddc7333ce23322be468473c4fc626
Revert "test"

This reverts commit 5ad80bfc6196aa80550159c6150cf9948972b53f.
Merge https://github.com/CyanogenMod/android_device_lge_hammerhead into kitkat