Defines starting with `o' in bsd/dev/i386

• _OHLFS12_ bsd/dev/i386/ohlfs12.h:30
• ONE_LINE bsd/dev/i386/VGAPriv.h:138
• ONE_PAGE bsd/dev/i386/VGAPriv.h:140
• ONE_SPACE bsd/dev/i386/VGAPriv.h:137