Bug 568518 Raw decoder correction

The RAW decoder incorrectly decodes the set with a record of type field if:
- The record of field has a variant:  REPEATABLE(yes)
- It is a "catch all unknonw IE" list

The problem is that the "catch all unknonw IE" list field can consume all IEs

Solution:
If the record/set of field of the set has variant "REPEATABLE(yes)"
decode 1 element of the field at a time.

Change-Id: I274015ec7fe8194438a9a8d6e7b995bcba6367f4