By Aziz El Yaakoubi RIYADH (Reuters) – Saudi Arabia has won a diplomatic victory by securing freedom for foreign fighters captured in Ukraine, signalling the value of the crown prince’s alliance with Russia to Western partners seeking to isolate Moscow over the war there, analysts say. Crown Prince Mohammed bin Salman may also find that the initiative — intentionally or otherwise — helps take him a step nearer international rehabilitation after the 2018 murder of Jamal Khashoggi damaged his reputation, they say. With Prince Mohammed’s mediation, Russia on Wednesday released 10 foreigners it …