Pad the top of timer setup to be similar to the adjacent tab's content

Bug: 28933967

The content on each tab should appear to start at roughly the same
height. The height of the digits in the timer setup view now matches
the height of the current time display in the adjacent world clock tab.

Change-Id: I7fac88ff7b352021a451fa6e7121e36ce8e0fab7
6 files changed