Make LXD installation optional in Charmed Installer

By default lxd cloud is defined, with this change optionally lxd cloud is not
added by passing --small-profile parameter in charmed installer.

Change-Id: I8f3b1816c9f2f43ee6bb84c15b2ce0eda99d691b
Signed-off-by: aticig <gulsum.atici@canonical.com>
diff --git a/installers/install_osm.sh b/installers/install_osm.sh
index 8863297..3a2c3b4 100755
--- a/installers/install_osm.sh
+++ b/installers/install_osm.sh
@@ -75,6 +75,7 @@
     echo -e "     [--k8s <kubeconfig path>]:   Specify with which kubernetes to deploy OSM with charms (--charmed option)"
     echo -e "     [--vca <name>]:              Specifies the name of the controller to use - The controller must be already bootstrapped (--charmed option)"
     echo -e "     [--lxd <yaml path>]:         Takes a YAML file as a parameter with the LXD Cloud information (--charmed option)"
+    echo -e "     [--small-profile]:           Do not install and configure LXD which aims to use only K8s Clouds (--charmed option)"
     echo -e "     [--lxd-cred <yaml path>]:    Takes a YAML file as a parameter with the LXD Credentials information (--charmed option)"
     echo -e "     [--microstack]:              Installs microstack as a vim. (--charmed option)"
     echo -e "     [--overlay]:                 Add an overlay to override some defaults of the default bundle (--charmed option)"