conf/ucm: bytcr-rt5640: Add generic bytcr-rt5640 UCM profile

conf/ucm: bytcr-rt5640: Add generic bytcr-rt5640 UCM profile

This commit adds the generic UCM profile for bytcr-rt5640 boards from:
https://github.com/plbossart/UCM, plus the fixes from this pull-req:
https://github.com/plbossart/UCM/pull/31

The profile has been split up into separate per input / output files to
allow for creation of long-name profiles with the specific input / output
combinations found on a board without needing to copy and paste things.

Note this profile exports all inputs and both stereo/mono speaker setups
even though a typical device will not use all. Ideally a long-name based
device specific profile made up of the various parts should be used
instead.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>