Settings: Add some more entries into 'SMS message limit' menu

Add None, 5 and 10 entries into 'SMS message limit' menu.

Change-Id: I8b206ae6c9f73378da65b09e68898de31439cc59
Merge "Settings: Add some more entries into 'SMS message limit' menu" into cm-11.0
Merge branch 'cm-11.0' into martincz