i915: Add DMC v2.06 for DG2

This version provides a fix for DC State entry/exit.

Signed-off-by: Madhumitha Tolakanahalli Pradeep <madhumitha.tolakanahalli.pradeep@intel.com>

WHENCE

@@ -4889,6 +4889,9 @@ Version: GuC API/APB ver 70.1.1 for Alderlake P
 File: i915/dg2_guc_70.1.2.bin
 Version: GuC API/APB ver 70.1.2 for DG2
 
+File: i915/dg2_dmc_ver2_06.bin
+Version: DMC API/APB ver 2 release 6 for DG2
+
 License: Redistributable. See LICENSE.i915 for details
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