build: Reorganized code.

Most MCU-dependent variable definitions ist now put into node-specific files.
Makes it easier to maintain code for different node types.

avr/0BUILD

@@ -2,6 +2,7 @@
 
 <gwbuild>
 
+<!--
   <target type="AvrHexFile" name="aqhomeavr" >
 
     <includes type="avrasm" >
@@ -16,6 +17,24 @@
     </sources>
 
 
+  </target>
+-->
+
+
+  <target type="AvrHexFile" name="att84_temp1" >
+
+    <includes type="avrasm" >
+      -I $(builddir)
+      -I $(srcdir)
+      -I $(topsrcdir)/avr
+    </includes>
+
+
+    <sources type="avrasm" >
+      att84_temp1.asm
+    </sources>
+
+
   </target>
   
 </gwbuild>