Fixed warnings test_zipfile

Fixed implicit declaration of strcmp warning
Fixed switch case of enumeration not handled

Change-Id: Ic3f3690a2e749235b1b0dffd252b119855ad36c0
Author: Ariel Bernal <ariel.j.bernal@intel.com>
Reviewed-by: Tareq A Siraj <tareq.a.siraj@intel.com>