Use float values in cfg.FloatOpt() options

In some FloatOpt() options integer values was used. It caused issues,
when we tried to update sample config file.
To fix it, float values set to cfg.FloatOpt().
Config sample updated.

Closes-Bug: #1301829

Change-Id: Iaaf9a9d478a40015cafb17142aa13a99a41a01f7
Merge "Use float values in cfg.FloatOpt() options"