Change casting NO_VAL to uint16_t to NO_VAL16

contribs/perlapi/common/msg.h

src/api/config_info.c

src/api/job_info.c

src/common/assoc_mgr.c

src/common/env.c

src/common/net.c

src/common/print_fields.c

src/common/proc_args.c

src/common/read_config.c

src/common/read_config.h

src/common/slurm_acct_gather.c

src/common/slurm_cred.c

src/common/slurm_jobacct_gather.c

src/common/slurm_protocol_api.c

src/common/slurm_protocol_defs.c

src/common/slurm_protocol_pack.c

src/common/slurm_protocol_util.c

src/common/slurm_step_layout.c

src/common/slurmdb_defs.c

src/common/slurmdb_pack.c