Fixes an issue where the padding to the clock was wrong

Because I moved around where the padding was set and there
was also setting the same padding programmically, we ended
up with double the padding after an event came in that
never went away anymore. This is now fixed.
I also adjusted the paddings slightly to adjust it back to
the spec again, since the calculation was off by 1dp before.

Fixes: 134927633
Test: atest SystemUITests
Change-Id: I67395cb9b7bf54a95ceee51c3384539c4d53578e