Retry for "Acceleration fault" errors (#313)

clients/mediaconvert.go

@@ -29,6 +29,7 @@ var errCodesAcceleration = []int64{
 	1041, // Acceleration Settings Error
 	1042, // Job Doesn't Require Enough Processing Power for Accelerated Transcoding
 	1043, // Secret Undocumented Error. Returned for this error msg: "Your input files aren't compatible with accelerated transcoding for the following reasons: [You can't use accelerated transcoding with input files that have empty edit lists as in this input: [0].] Disable accelerated transcoding and resubmit your job."
+	1550, // Acceleration Fault: There is an unexpected error with the accelerated transcoding of this job
 }
 var ErrJobAcceleration = errors.New("job should not have acceleration")