Moving mv entropy encodings calculation to the encoder side.

Moved arrays:
  vp9_mv_joint_encodings
  vp9_mv_class_encodings
  vp9_mv_class0_encodings
  vp9_mv_fp_encodings

Change-Id: Iaf5008c579fcbd6d77fdd81d1aef8c71b5f308b7
6 files changed