By Stefano Rebaudo MILAN (Reuters) -Surging inflation expectations triggered by possible sanctions on Russian oil drove euro zone real government bond yields to fresh record lows on Monday, amid rising fears of a stagflationary shock for the European economy. Brent crude prices soared to their highest levels since 2008 after the United States and European allies weighed a Russian oil import ban and delays in the potential return of Iranian crude to global markets. “Markets are pricing in risks of surging inflation, triggered by energy prices, coupled with an adverse impact on economic growth; …