phy: qcom: m31-eusb2: drop registration printk

Drivers should generally be quiet on successful probe so drop the
registration printk from the recently added M31 EUSB2 driver.

Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://lore.kernel.org/r/20250617080401.11147-1-johan+linaro@kernel.org


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