soc: fsa4480-i2c: Register with UCSI for audio accessory notifications

On Lahaina, the POWER_SUPPLY_PROP_TYPEC_MODE property is not present,
and Type-C specific information flows via the UCSI driver. Therefore,
register with the UCSI driver instead of the power supply framework to
receive notifications about audio accessory attach/detachment.

Change-Id: I129912b6e2e4ce76fd0777db5fa4d42bf1c93a2a
Signed-off-by: Guru Das Srinagesh <gurus@codeaurora.org>