Now that the headset-mic is always IN3 there is no reason to have
the headset-mic mapping in the long-name.

This commit simplifies the long name to "bytcr-rt5651-<intmic-map>-mic".

We can safely do this without causing regressions (UCM profile not found
due to the longname change) as the UCM profiles are not in upstream
alsa-lib yet.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>