Tyco Raises Dividend  BOSTON (Reuters) - Tyco International Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=TYC.N target=/stocks/quickinfo/fullquote"&gt;TYC.N&lt;/A&gt;        on  Thursday raised its dividend for the first time in five years,  the latest indication of change at the once scandal-tarnished  diversified manufacturer.