soc: qcom: ultrasonic wake-up using fingerprint sensor

Add support for enabling and sharing the SSC SPI connected to the
fingerprint sensor as required for ultrasonic wake-up feature.

Change-Id: I9acd806155f85f572a4e8a35b9cbdd0a4ba79c45
Acked-by: Tamoghna Sadhu <tsadhu@qti.qualcomm.com>
Signed-off-by: Ian Maund <imaund@codeaurora.org>