use relative directory to instead of absolute directory of link file FM3 IAR project

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1314 bbd45198-f89e-11dd-88c7-29a3b14d5316

bsp/fm3/fm3_easy_kit.ewp

@@ -666,7 +666,7 @@
         </option>
         <option>
           <name>IlinkIcfFile</name>
-          <state>D:\work\RTT\FM3\20110303\SVN\bsp\fm3\mb9bf500r.icf</state>
+          <state>$PROJ_DIR$\mb9bf500r.icf</state>
         </option>
         <option>
           <name>IlinkIcfFileSlave</name>