Stub IFriendService: 1 (Cancel) (#3841)

* Add friend/Cancel. Closes #3824

* Update according to review comments.

* Add comment base on request

* Update Ryujinx.HLE/HOS/Services/Friend/ServiceCreator/IFriendService.cs

Co-authored-by: Ac_K <Acoustik666@gmail.com>

Ryujinx.HLE/HOS/Services/Friend/ServiceCreator/IFriendService.cs

@@ -43,6 +43,16 @@ namespace Ryujinx.HLE.HOS.Services.Friend.ServiceCreator
             return ResultCode.Success;
         }
 
+        [CommandHipc(1)]
+        // nn::friends::Cancel()
+        public ResultCode Cancel(ServiceCtx context)
+        {
+            // TODO: Original service sets an internal field to 1 here. Determine usage.
+            Logger.Stub?.PrintStub(LogClass.ServiceFriend);
+
+            return ResultCode.Success;
+        }
+
         [CommandHipc(10100)]
         // nn::friends::GetFriendListIds(int offset, nn::account::Uid userId, nn::friends::detail::ipc::SizedFriendFilter friendFilter, ulong pidPlaceHolder, pid)
         // -> int outCount, array<nn::account::NetworkServiceAccountId, 0xa>