update MDK4 project and template

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2067 bbd45198-f89e-11dd-88c7-29a3b14d5316

bsp/sam7x/project.uvproj

@@ -7,7 +7,7 @@
 
   <Targets>
     <Target>
-      <TargetName>Target 1</TargetName>
+      <TargetName>RT-Thread/AT91SAM7X256</TargetName>
       <ToolsetNumber>0x4</ToolsetNumber>
       <ToolsetName>ARM-ADS</ToolsetName>
       <TargetOption>

bsp/sam7x/template.uvproj

@@ -7,7 +7,7 @@
 
   <Targets>
     <Target>
-      <TargetName>Target 1</TargetName>
+      <TargetName>RT-Thread/AT91SAM7X256</TargetName>
       <ToolsetNumber>0x4</ToolsetNumber>
       <ToolsetName>ARM-ADS</ToolsetName>
       <TargetOption>