port: Mms: Fix QuickMessage mdpi/hdpi layouts

Change-Id: I0975083bb1a875387c61bc7e3dc64d5ddcdc0799
JIRA: CYAN-1605
Issue: https://jira.cyanogenmod.org/browse/CYAN-1605
Signed-off-by: Jorge Ruesga <jorge@ruesga.com>