config: arm64: Enable SND_SOC and codecs
    
    Config mimics armv7hl, save any differences due to less SoCs supported
    by arm64.
    
    Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>
    [AF: Rebased onto v4.12-rc3]
    Signed-off-by: Andreas Färber <afaerber@suse.de>