Unifies usage of flags in case of IR exclusion from ocloc's output file.
When -exclude_ir parameter is active, then internal options passed to
IGC contain -exclude-ir-from-zebin to preserve consistency. Moreover,
when only -exclude-ir-from-zebin is present, then -exclude_ir is also set.
Related-To: NEO-6477
Signed-off-by: Patryk Wrobel <patryk.wrobel@intel.com>