LOS ANGELES – Hollywood’s awards season has found an unlikely underdog in “RRR.” S.S. Rajamouli’s three-hour maximalist action epic is one of India’s most expensive and top-grossing films of all time. It pairs two of the country’s biggest stars, N.T. Rama Rao Jr. and Ram Charan, and topped Netflix streaming charts over the summer. It’s been showered with praise from the likes of J.J. Abrams and Jessica Chastain. It won best original song at the Golden Globes for the exuberant “Naatu Naatu” and has five Critics Choice Awards nominations, including for best picture. But the Academy Awards generally shun foreign…