[mac] fix macro typo (#4601)
[mac] fix macro typo (#4601)


librasungirl/openthread,abtink/openthread,abtink/openthread,lanyuwen/openthread,bukepo/openthread,bukepo/openthread,jwhui/openthread,lanyuwen/openthread,lanyuwen/openthread,jwhui/openthread,openthread/openthread,srickardti/openthread,abtink/openthread,bukepo/openthread,chshu/openthread,srickardti/openthread,jwhui/openthread,openthread/openthread,srickardti/openthread,librasungirl/openthread,bukepo/openthread,srickardti/openthread,lanyuwen/openthread,librasungirl/openthread,librasungirl/openthread,chshu/openthread,chshu/openthread,abtink/openthread,jwhui/openthread,lanyuwen/openthread,openthread/openthread,chshu/openthread,chshu/openthread,lanyuwen/openthread,openthread/openthread,chshu/openthread