Restructure int8 testing
Restructure int8 testing to run each kernel in isolation based only on reference data Signed-off-by:Emil Ohlsson <emil.ohlsson@arm.com> Reviewed-by:
Emil Ohlsson <emil.ohlsson@arm.com> Approved-by:
Felix Johnny Thomasmathibalan <felixjohnny.thomasmathibalan@arm.com>