drm/i915/ehl: extended Wa_2006604312 to ehl

Reflect recent bspec changes.

Bspec: 33451

Signed-off-by: Matt Atwood <matthew.s.atwood@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200413175322.12162-1-matthew.s.atwood@intel.com


Reviewed-by: Matt Roper <matthew.d.roper@intel.com>