Update GIFLIB to 5.1.4 DO NOT MERGE am: 75c90ad75c  -s ours am: fcb372c282 am: 7998de9149  -s ours am: d7a50967ff am: 301b8f1180 am: cb0795e294 am: 23053275eb  -s ours
am: 48f08e868d

Change-Id: I003debf26c860d88c49f1f9bf94c1a0119134e0b