drm/i915/dg2: Add Wa_14015227452

Note that the bspec doesn't list the bit we're programming here (bit 11)
as being present on DG2, but we've confirmed with the hardware team that
this is a documentation mistake and the bit does indeed exist on all
Xe_HP-based platforms.

Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220127194855.3963296-1-matthew.d.roper@intel.com
Reviewed-by: Swathi Dhanavanthri <swathi.dhanavanthri@intel.com>