Variables starting with `o' in bsd/netat

• ocMaximum bsd/netat/adsp.h:325
• O_STATE_OPEN bsd/netat/adsp_Open.c:100
• ot_adsp_socketM bsd/netat/adsp_stream.c:79
• ot_atp_socketM bsd/netat/atp_write.c:84