Fixing counting the number of days in call log screen.

Counting the number of days in call log screen when a
call was made/received within a week is not correct.

Issue 3132: Call Log Reporting Wrong

Change-Id: I99c3cb40267b4b5938ccc4225993b7aac7e2d018
Signed-off-by: David Sobreira Marques <dpsmarques@gmail.com>