Sadly, no. The pre-requisite for that feat (and all similar feats) is to possess the class feature. Until you've gotten a rage power, you don't have the "rage power" class feature and thus don't meet the pre-reqs.
You can not take extra rage power until you gain your first rage power. A character is not considered to have the required class ability (rage power in this case) until they actually gain their first one.