adding rflint to basebuilds

Change-Id: I2fda8c2bcc199343bc4ec0b20f7d15243bd8ce14
diff --git a/packer/provision/basebuild.sh b/packer/provision/basebuild.sh
index a367e5e..08c7a5a 100644
--- a/packer/provision/basebuild.sh
+++ b/packer/provision/basebuild.sh
@@ -142,6 +142,7 @@
         robotframework \
         robotframework-httplibrary \
         robotframework-kafkalibrary \
+        robotframework-lint \
         robotframework-requests \
         robotframework-sshlibrary \
         tox \