phy: qcom: m31-eusb2: Update init sequence to set PHY_ENABLE

phy: qcom: m31-eusb2: Update init sequence to set PHY_ENABLE

Certain platforms may not have the PHY_ENABLE bit set on power on reset.
Update the current sequence to explicitly write to enable the PHY_ENABLE
bit.  This ensures that regardless of the platform, the PHY is properly
enabled.

Signed-off-by: Ronak Raheja <ronak.raheja@oss.qualcomm.com>
Signed-off-by: Wesley Cheng <wesley.cheng@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Link: https://patch.msgid.link/20250920032158.242725-1-wesley.cheng@oss.qualcomm.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>