ART: Pass Options should be strings instead of integers

This patch modifies the pass options to handle string
values as well as integers. This will allow for more
verbose pass customization.

Change-Id: Iaf9507ceaae2cef317a23f0783404bacfdcad023
Signed-off-by: Jean-Philippe Halimi <jean-philippe.halimi@intel.com>
3 files changed