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

Add Support for the latest version of KBL.

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

WHENCE

@@ -3845,6 +3845,9 @@ Version: HuC API/APB ver 1 - release 8 for Broxton
 File: i915/kbl_huc_ver02_00_1810.bin
 Version: HuC API/APB ver 2 - for Kabylake
 
+File: i915/kbl_huc_4.0.0.bin
+Version: HuC API/APB ver 4 - for Kabylake
+
 File: i915/bxt_guc_ver8_7.bin
 Version: Guc API/APB ver 8 - release 7 for Broxton