phy: fsl-imx8mq-usb: fix phy_tx_vboost_level_from_property()

phy: fsl-imx8mq-usb: fix phy_tx_vboost_level_from_property()

The description of TX_VBOOST_LVL is wrong in register PHY_CTRL3
bit[31:29].

The updated description as below:
  011: Corresponds to a launch amplitude of 0.844 V.
  100: Corresponds to a launch amplitude of 1.008 V.
  101: Corresponds to a launch amplitude of 1.156 V.

This will fix the parsing function
phy_tx_vboost_level_from_property() to return correct value.

Fixes: 63c85ad0cd81 ("phy: fsl-imx8mp-usb: add support for phy tuning")
Cc: stable@vger.kernel.org
Reviewed-by: Jun Li <jun.li@nxp.com>
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Link: https://lore.kernel.org/r/20250430094502.2723983-3-xu.yang_2@nxp.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>