isl_scheduler.c: setup_carry_lp: return isl_stat
isl_scheduler.c: setup_carry_lp: return isl_stat

Signed-off-by: Sven Verdoolaege <e5350bbed4977f5eb8ae1dc6abd9ae59d21ace75@kotnet.org>

UBERTC/isl,nicolasvasilache/isl,tobig/isl,nicolasvasilache/isl,inducer/isl-mirror,Meinersbur/isl,BenzoSM/isl,tobig/isl,Meinersbur/isl,BenzoSM/isl,PollyLabs/isl,Meinersbur/isl,inducer/isl-mirror,tobig/isl,BenzoSM/isl,UBERTC/isl,nicolasvasilache/isl,nicolasvasilache/isl,inducer/isl-mirror,BenzoSM/isl,UBERTC/isl,PollyLabs/isl,UBERTC/isl,PollyLabs/isl,Meinersbur/isl,PollyLabs/isl,PollyLabs/isl,nicolasvasilache/isl,tobig/isl,inducer/isl-mirror,inducer/isl-mirror,BenzoSM/isl