test(fuzz) adding fuzzing for all SDEI calls

added constraints for all calls
added fuzzer feature to start at arbitrary call number
added fuzzer features for function exclusion, fuzzer starting/ending call
worked on additional fuzzing for event_register

Change-Id: I9814b8387ea9e0fb00b53adbdbe0f8429845924e
Signed-off-by: Alex Liang <alex.liang2@arm.com>
14 files changed