frontend: Adjust console tooltips

Console tooltips for clients are vague and difficult to reach (user
needs to hover over the radio button).

This patch moves the description from radio button tooltip to explicit
InfoIcon widget.

Change-Id: I2459521e7ba303918a0992ffd95398b0c42f03df
Bug-Url: https://bugzilla.redhat.com/1065947
Signed-off-by: Frantisek Kobzik <fkobzik@redhat.com>