hammerhead: Update fingerprints and build desc.
hammerhead: Update fingerprints and build desc.

Change-Id: Icabe62dd84ae744d2a4c9f6fbdd6cbbd001b638d
hammerhead: Update fingerprints and build description according to MOB30M

maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead,maruos/android_device_lge_hammerhead