Integrate install_dev_tools into install_docker

The packages installed by the install_dev_tools are only required by
the docker installation, therefore is not necessary to install them
in other cases. According to the Docker official documentation the
linux-image-extra-* packages are required.

Change-Id: I96c5f556c9e5a74d52e012d7896786061299036e
Signed-off-by: Victor Morales <victor.morales@intel.com>
Issue-Id: INT-328
diff --git a/bootstrap/vagrant-onap/lib/functions b/bootstrap/vagrant-onap/lib/functions
index ce95ea0..cc90523 100755
--- a/bootstrap/vagrant-onap/lib/functions
+++ b/bootstrap/vagrant-onap/lib/functions
@@ -58,11 +58,6 @@
     fi
 }
 
-# install_dev_tools() - Install basic dependencies
-function install_dev_tools {
-    install_packages apt-transport-https ca-certificates curl
-}
-
 # _install_bind() - Install bind utils
 function _install_bind {
     install_packages bind9 bind9utils
@@ -193,7 +188,7 @@
         *suse)
         ;;
         ubuntu|debian)
-            install_package software-properties-common
+            install_packages software-properties-common linux-image-extra-$(uname -r) linux-image-extra-virtual apt-transport-https ca-certificates curl
             curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
             add-apt-repository \
             "deb [arch=amd64] https://download.docker.com/linux/ubuntu \