Bug #884329 - [Keyboard] Add missing Nun Sofit to the Hebrew keyboard layout

For some reason we had Vav twice and no Nun Sofit.
More information: https://en.wikipedia.org/wiki/%D7%9F#Hebrew_Nun

This fixes bug #884329
Merge pull request #10465 from elad661/gaia-keyboard-nun-sofit

Bug #884329 - Add missing Nun Sofit to the Hebrew keyboard layout. r=rudylu