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

Change-Id: Id73680fbef1b3fa32255901dd84a0b88c814c6e8