Fix center layout on manually lowered DPI

Change-Id: I11c1f9c31df9021e1763d4aed9af5517e3cb8753
Signed-off-by: Gergely Szell (sethyx) <szell@hu.ibm.com>
Merge branch 'jb-mr1' of github.com:Root-Box/packages_apps_Phone into jb-mr1