sunxi-code: Rename Line Volume capture control

So that it does not have the same name as the playback control, if the 2
have the same name this causes the following errors:

[    0.702160] ALSA control.c:347 control 2:0:0:Line Volume:0 is already present
[    0.709430] sunxi-codec: probe of sunxi-codec failed with error -16

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Michaël Colignon ledesillusionniste@gmail.co
sunxi: spdif: Enable GPIO for spdif

the enabling of the GPIO used for spdif was lost
in the conversion to the new naming convention.
It is required for the spdif to work.

Signed-off-by: Marcus Cooper <codekipper@gmail.com>