adding ppp to install dependencies

aux/deploy-busunit-interactive

@@ -123,7 +123,7 @@ read adddeps
 
 if [[ "$adddeps" =~ ^[yY]?$ ]]; then
 
-  deps="espeak mplayer git"
+  deps="espeak mplayer git ppp ppp-dev"
 
   echo ""
   echo "  Installing: $deps"