ASoC: wm8960: Add ACPI support

ASoC: wm8960: Add ACPI support

HID made of either Wolfson/CirrusLogic PCI ID + 8960 identifier

This helps enumerate the Waveshare WM8960 WM8960 Hi-Fi Sound
Card HAT on the Up2 platform.

The scripts at https://github.com/thesofproject/acpi-scripts
can be used to add the ACPI initrd overlay.

This commit is similar to the commit:
960cdd50ca9f ("ASoC: wm8804: Add ACPI support")

Signed-off-by: Nicola Lunghi <nick83ola@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20220427212916.40145-1-nick83ola@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>