add n8020 support

Signed-off-by: Humberto Borba <humberos@gmail.com>
n80xx: audio: add 48K samplerate

Signed-off-by: Humberto Borba <humberos@gmail.com>
Change-Id: Ic8111a90c9f96a1f58ca6a8bcac0e9cb2511b2ec
Merge remote-tracking branch 'humber/cm-10.1' into HEAD