i915: Update ADLP DMC v2.12

Updateing ADLP DMC to v2.12.
Release Notes mention that this version has fix
for DC6 bort scenarios.

Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>

WHENCE

@@ -4550,6 +4550,9 @@ Version: DMC API/APB ver 2 release 9 for Alderlake P
 File: i915/adlp_dmc_ver2_10.bin
 Version: DMC API/APB ver 2 release 10 for Alderlake P
 
+File: i915/adlp_dmc_ver2_12.bin
+Version: DMC API/APB ver 2 release 12 for Alderlake P
+
 File: i915/adlp_guc_62.0.3.bin
 Version: GuC API/APB ver 62.0.3 for Alderlake P