Fix the clicking issue of restricted info icon

When the switch controller was disabled by admin, we will show the
restricted info icon on it and when user click this icon, it should pop
a dialog to notify user current action not allowed.

This issue was caused by the solution of fixing the a11y view focus
issue b/124334500, it has been disabled the focusable and clickable
attributes of icon then to block the dialog showing.

Recover the focusable and clickable of restricted info icon to fix it.

Fixes: 136439565
Test: visual, robotests
Change-Id: I227add696870e07feca288073e90afa8e76954ee