Support for stitch in Aladdin.
Support for stitch in Aladdin.

BUG=ALADDIN-11

Change-Id: I7f1295e648fb63156ad8c283d09c76279ba10aa8

andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin,andrewfu0325/gem5-aladdin