The Disney-backed “How to Be a Carioca,” from “Ice Age” creator Carlos Saldanha, and “Allende, the Thousand Days,” an adventurous Chilean-Spanish pick-up from Spanish pubcaster RTVE, will both world premiere at Iberscreenings, catching new evolution on the Spain-Portugal-Latin America TV scene. A comedy, showrun by Saldanha, consolidating his exploration of live action after Netflix’s 2021 …