drm/i915/firmware: Add v2.0.0 of HuC for Skylake

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

WHENCE

@@ -3833,6 +3833,9 @@ Version: Guc API/ABI ver 33 - release 0 for Skylake
 File: i915/skl_huc_ver01_07_1398.bin
 Version: HuC API/ABI ver 1 - release 7 for Skylake
 
+File: i915/skl_huc_2.0.0.bin
+Version: HuC API/ABI ver 2 - release 0 for Skylake
+
 File: i915/bxt_huc_ver01_07_1398.bin
 Version: HuC API/APB ver 1 - release 7 for Broxton