After some googling I got the impression that the meaning of this name is not known.
The user submitted name Rodelio here (use site search to look it up) gives Filipino as usage, but that's incomplete: It seems it's a name that originated in Spain and is in use pretty much in every place where people speak Spanish or were under longtime Spanish influence like the Philippines.
Maybe it started as a modification of
Rogelio for "easier" pronounciation?