cosmetics,rdopt.c: fix some typos
cosmetics,rdopt.c: fix some typos

Change-Id: I558106e3e415cbcbb6673d24349daed48b616034

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