n80xx-common: use static filename for audio config

n8010 and n8013 now is n801x
so this patch is updating the filename for audio config to

/system/etc/sound/n80xx

it requires changes in n8000 (not merged yet) and n801x devices repos

Signed-off-by: Humberto Borba <humberos@gmail.com>
Change-Id: I14fbc4064d0736b093bef3c75e5867d8f8bc4403
n80xx: disable fmradio input which is enabled by default