Let get_est_rd call get_est_rate_dist
Let get_est_rd call get_est_rate_dist

Change-Id: I645e109a642f4a1723724d150e3732eba3a4a987

GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom,GrokImageCompression/aom