Dialer: deblur fab_blue.png

One of my users is reporting this kind of problem
all around the dialer app...

Zoom in and we'll see the edge of button in
original picture is not clear. The new one is
much more smoother.

Change-Id: I92e48166abcaa22e7ad73f0859ade09bafa1b2bb
Merge branch 'remote' into mkl