Autosize hint text

Autosize hint text string to fit within the bounds of
- 5 max lines
- 16sp max font size
- 12sp min font size

This also removes a space between hint icon and description,
which caused action text to hide behind t9 dialer in some languages.

Ticket CD-631

Change-Id: I077da31789bba82535856f07d674b6dd98bc1f64