cirrus: cs35l56: Add WHENCE links for 17aa233c spkid0 firmware

cirrus: cs35l56: Add WHENCE links for 17aa233c spkid0 firmware

Linux kernel v6.18 added support for the cs35l56 amplifier family to
retrieve the speaker set ID from an EFI variable on Lenovo systems.
This allows different firmware files to be selected for different
speaker hardware variants.

The 17aa233c product uses a single firmware set and exposes this EFI
variable with a value indicating that speaker set ID 0 should be used.

This patch adds WHENCE Link: entries to alias the spkid0 firmware files
to the firmware that was previously published.

Change-Id: I822239c8f509a2ceea4b6cb3bafe70c23c211d41
Signed-off-by: Simon Trimmer <simont@opensource.cirrus.com>