DONT use with_items with yum module

DONT use with_items with yum module

This fixes deprecation warning to invoke yum module without
with_items. Using with_items is slower and not recommended.

[DEPRECATION WARNING]: Invoking "yum" only once while using a loop
via squash_actions is deprecated. Instead of using a loop to supply
multiple items and specifying `name: {{item}}`, please use
`name: [u'{{sed_output.stdout_lines }}']` and remove the loop.
This feature will be removed in version 2.11.

Change-Id: Ie2c95d54d4ddf59cfc65d4b74cc4008ff4929218
Signed-off-by: Anil Belur <abelur@linuxfoundation.org>