MMS: Update Polish language

PS1: Fix doubled string

Change-Id: Ib82545886ea285d281bbad9a5d838d7d596d3078
Fixed Latvian translation

Change-Id: Ifc7265c87963b1fb033056e048474757d1db801e
Merge "MMS: Update Polish language" into cm-10.1
Mms: SK translation

Change-Id: I4a06554b7ef6420dd48d5a36f2e2f61cec69710d