Defines starting with `i' in bsd/netat/at

• IF_NAME_LEN bsd/netat/at/nbp.h:123
• IFTYPE_ETHERTALK bsd/netat/at/at_lap.h:123
• IFTYPE_FDDITALK bsd/netat/at/at_lap.h:125
• IFTYPE_LOCALTALK bsd/netat/at/at_lap.h:127
• IFTYPE_NULLTALK bsd/netat/at/at_lap.h:126
• IFTYPE_OTHERTALK bsd/netat/at/at_lap.h:128
• IFTYPE_TOKENTALK bsd/netat/at/at_lap.h:124
• InfoTagCnt bsd/netat/at/adsp.h:192