Add binaries preparation to installation steps

Adding binaries preparation into installation steps as rke binary need
to be renamed and helm binary need to be unarchived. Removing those
previously manual steps from BuilGuide

Issue-ID: OOM-1925

Change-Id: I504320fb82e1c8f6db2f99c5dfd4518192eae895
Signed-off-by: Tomáš Levora <t.levora@partner.samsung.com>
diff --git a/ansible/test/roles/prepare-rke/tasks/infra.yml b/ansible/test/roles/prepare-rke/tasks/infra.yml
index 55ab7f1..e9971f7 100644
--- a/ansible/test/roles/prepare-rke/tasks/infra.yml
+++ b/ansible/test/roles/prepare-rke/tasks/infra.yml
@@ -7,7 +7,7 @@
 - name: "Install rke-{{ rke_version }}"
   get_url:
     url: "https://github.com/rancher/rke/releases/download/v{{ rke_version }}/rke_linux-amd64"
-    dest: "{{ app_data_path }}/downloads/rke"
+    dest: "{{ app_data_path }}/downloads/rke_linux-amd64"
 
 - name: "Install kubectl-{{ kubectl_version }}"
   get_url: