Update known_good.json to pick up SPV_KHR_workgroup_memory_explicit_layout

Test/baseResults/hlsl.load.2dms.dx10.frag.out

@@ -357,6 +357,7 @@ using depth_any
 0:?     '@entryPointOutput.Depth' ( out float FragDepth)
 0:?     '@entryPointOutput.Color' (layout( location=0) out 4-component vector of float)
 
+Validation failed
 // Module Version 10000
 // Generated by (magic number): 8000a
 // Id's are bound by 130

Test/baseResults/hlsl.load.offset.dx10.frag.out

@@ -561,6 +561,7 @@ using depth_any
 0:?     '@entryPointOutput.Depth' ( out float FragDepth)
 0:?     '@entryPointOutput.Color' (layout( location=0) out 4-component vector of float)
 
+Validation failed
 // Module Version 10000
 // Generated by (magic number): 8000a
 // Id's are bound by 201

Test/baseResults/hlsl.load.offsetarray.dx10.frag.out

@@ -435,6 +435,7 @@ using depth_any
 0:?     '@entryPointOutput.Depth' ( out float FragDepth)
 0:?     '@entryPointOutput.Color' (layout( location=0) out 4-component vector of float)
 
+Validation failed
 // Module Version 10000
 // Generated by (magic number): 8000a
 // Id's are bound by 174

Test/baseResults/spv.nullInit.comp.out

 spv.nullInit.comp
-Validation failed
 // Module Version 10000
 // Generated by (magic number): 8000a
 // Id's are bound by 37

known_good.json

@@ -5,14 +5,14 @@
       "site" : "github",
       "subrepo" : "KhronosGroup/SPIRV-Tools",
       "subdir" : "External/spirv-tools",
-      "commit" : "ad898cb9498c65cac7c5b6f9ebddb610bd0852ad"
+      "commit" : "b812fd634ea5ff307c374fb2b6340169f7db8b16"
     },
     {
       "name" : "spirv-tools/external/spirv-headers",
       "site" : "github",
       "subrepo" : "KhronosGroup/SPIRV-Headers",
       "subdir" : "External/spirv-tools/external/spirv-headers",
-      "commit" : "f027d53ded7e230e008d37c8b47ede7cd308e19d"
+      "commit" : "faa570afbc91ac73d594d787486bcf8f2df1ace0"
     }
   ]
 }