Micron Technology Posts Profit  SAN FRANCISCO (Reuters) - Micron Technology Inc. &lt;A HREF="http://www.investor.reuters.com/FullQuote.aspx?ticker=MU.N target=/stocks/quickinfo/fullquote"&gt;MU.N&lt;/A&gt;,  the No. 3 computer memory chip maker, on Wednesday reported a  quarterly profit on stronger pricing, reversing a year-earlier  loss.