Move clamp mv from get_this_mv to build_cur_mv
Move clamp mv from get_this_mv to build_cur_mv

Change-Id: Ib9215f33c1656cce280c7dcda32f4196c228999c

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