By Andrew MacAskill LONDON (Reuters) – British Prime Minister Rishi Sunak won the first vote in the upper house of parliament on his legislation to revive a plan to send asylum seekers to Rwanda despite lawmakers spending hours attacking the bill as unethical and unworkable. Under the Rwanda plan, which has yet to be carried out, asylum seekers who arrive on England’s southern coast in small, inflatable boats would be sent to Rwanda to live. After more than six hours of debate on Monday, unelected members of the House of Lords, largely made of former politicians and government officials, defea…