dsp: Implement missing equalizer commands

Fix android.media.cts.EqualizerTest failures

Change-Id: I82501577f9a87d2a149c3e302803dd6553dfa0f5
DSPManager: Update Polish language

Change-Id: Ie947940f3cc678322033bf2e5164636700f8553e
Add LV translation

Change-Id: Id16e07909d212489adca2bf6ae0cf65c3b6987a0
Merge branch 'cm' into HEAD