drm/i915/firmware: Add v4.0.0 of HuC for Cometlake

Add Support for the latest version of CML.
Signed-off-by: Anusha Srivatsa <anusha.srivatsa@intel.com>

WHENCE

@@ -3893,6 +3893,9 @@ Version: Huc API/APB ver 4 release 0 for Geminilake
 File: i915/glk_dmc_ver1_04.bin
 Version: DMC API/ABI ver 1 - release 04 for Geminilake
 
+File: i915/cml_huc_4.0.0.bin
+Version: HuC API/ABI ver 4 - release 0 for Cometlake
+
 File: i915/cnl_dmc_ver1_06.bin
 Version: DMC API/ABI ver 1 - release 06 for Cannonlake