arm64: dts: allwinner: a64: Enable audio on Teres-I

The TERES-I has internal speakers (left, right), internal microphone
and a headset combo jack (headphones + mic), "CTIA" (android) pinout.

The headphone and mic detect lines of the A64 are connected properly,
but AFAIK currently unsupported by the driver.

Reviewed-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Harald Geyer <harald@ccbib.org>
Signed-off-by: Torsten Duwe <duwe@suse.de>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>