Define !CONFIG_FOO in config.make if feature disabled

git-svn-id: file:///var/local/repositories/ffmpeg/trunk@21192 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b

configure

@@ -482,6 +482,7 @@ print_config(){
             echo "${pfx}${ucname}=yes" >> $makefile
         else
             echo "#define ${pfx}${ucname} 0" >> $header
+            echo "!${pfx}${ucname}=yes" >> $makefile
         fi
     done
 }