Phone: RU translation

PS2: changed "mwi_notification_summary" string

PS3: removed whitespaces from preferred network modes

PS4: fixed typo, changed MWI strings

PS5: changed MWI strings

PS6: updated translation

Change-Id: I19dfdf3db15fda801fca6426eda6e9feac85f16b
Phone: SK translations

Change-Id: If6766a38c9a383d7cbfae08b240a55805f7005c4