(Corrects crater name to Jezero, not Jerezo, in paragraphs 6 and 8) By Joey Roulette and Steve Gorman WASHINGTON (Reuters) -NASA said on Thursday its Mars robot helicopter Ingenuity, the first vehicle to achieve powered, controlled flight on another world, has been grounded for good after flying dozens of times over three years, ending a landmark mission that far exceeded all expectations. The fate of Ingenuity was sealed when imagery beamed back to Earth after its 72nd and final flight on Jan. 18 showed that a portion of one of the miniature whirligig’s twin rotor blades had broken off, leavi…