Re-enable netv2 video target

[mithro]

As of cacbf40#diff-354f30a63fb0907d4ad57269548329e3 the NeTV2 video target is disable see below;

  #--------------------------------------------
  # Video Targets
  #--------------------------------------------
  - stage: Targets - Video
    env: C=lm32 P=atlys        T="video"


  #- stage: Targets - Video
  #  env: C=lm32 P=netv2        T="video"


  - stage: Targets - Video
    env: C=lm32 P=nexys_video  T="video"


  - stage: Targets - Video
    env: C=lm32 P=opsis        T="video"

I can't remember why it was disabled, but it would get it re-enabled.