kernelbase: Add CreateBoundaryDescriptorW stub.

dlls/api-ms-win-core-namespace-l1-1-0/api-ms-win-core-namespace-l1-1-0.spec

 @ stub AddSIDToBoundaryDescriptor
 @ stub ClosePrivateNamespace
-@ stub CreateBoundaryDescriptorW
+@ stdcall CreateBoundaryDescriptorW(wstr long) kernel32.CreateBoundaryDescriptorW
 @ stub CreatePrivateNamespaceW
 @ stub DeleteBoundaryDescriptor
 @ stub OpenPrivateNamespaceW

dlls/kernel32/kernel32.spec

@@ -267,7 +267,7 @@
 @ stdcall CreateActCtxA(ptr)
 @ stdcall -import CreateActCtxW(ptr)
 # @ stub CreateBoundaryDescriptorA
-# @ stub CreateBoundaryDescriptorW
+@ stdcall -import CreateBoundaryDescriptorW(wstr long)
 @ stdcall -import CreateConsoleScreenBuffer(long long ptr long ptr)
 @ stdcall -import CreateDirectoryA(str ptr)
 @ stdcall CreateDirectoryExA(str str ptr)

dlls/kernelbase/kernelbase.spec

@@ -174,7 +174,7 @@
 # @ stub CouldMultiUserAppsBehaviorBePossibleForPackage
 @ stdcall CreateActCtxW(ptr)
 # @ stub CreateAppContainerToken
-# @ stub CreateBoundaryDescriptorW
+@ stdcall CreateBoundaryDescriptorW(wstr long)
 @ stdcall CreateConsoleScreenBuffer(long long ptr long ptr)
 @ stdcall CreateDirectoryA(str ptr)
 @ stdcall CreateDirectoryExW(wstr wstr ptr)

dlls/kernelbase/security.c

@@ -923,6 +923,15 @@ BOOL WINAPI ConvertToAutoInheritPrivateObjectSecurity( PSECURITY_DESCRIPTOR pare
 }
 
 /******************************************************************************
+ * CreateBoundaryDescriptorW    (kernelbase.@)
+ */
+HANDLE WINAPI CreateBoundaryDescriptorW( LPCWSTR name, ULONG flags )
+{
+    FIXME("%s %u - stub\n", debugstr_w(name), flags);
+    return NULL;
+}
+
+/******************************************************************************
  * CreatePrivateObjectSecurity    (kernelbase.@)
  */
 BOOL WINAPI CreatePrivateObjectSecurity( PSECURITY_DESCRIPTOR parent, PSECURITY_DESCRIPTOR creator,