ARM: dts: imx6qdl: convert fsl,tx-d-cal to correct value

ARM: dts: imx6qdl: convert fsl,tx-d-cal to correct value

make dtbs_check has below warning:

arch/arm/boot/dts/nxp/imx/imx6q-var-mx6customboard.dtb: usbphy@20c9000: fsl,tx-d-cal: 5 is less than the minimum of 79
        from schema $id: http://devicetree.org/schemas/phy/fsl,mxs-usbphy.yaml#

According to schema, valid value of fsl,tx-d-cal is from 79 to 119. This
will convert register raw value <0x5> to corresponding <106>.

Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>