phy: qcom-qusb2: Add support for QCS615

Add init sequence and phy configuration for QCS615.

Signed-off-by: Krishna Kurapati <krishna.kurapati@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20241224084621.4139021-3-krishna.kurapati@oss.qualcomm.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>