clk: imx6ul: fix clock parent for IMX6UL_CLK_ENETx_REF_SEL

clk: imx6ul: fix clock parent for IMX6UL_CLK_ENETx_REF_SEL

Commit 4e197ee880c24ecb63f7fe17449b3653bc64b03c ("clk: imx6ul: add
ethernet refclock mux support") sets the internal clock as default
ethernet clock.

Since IMX6UL_CLK_ENET_REF cannot be parent for IMX6UL_CLK_ENET1_REF_SEL,
the call to clk_set_parent() fails. IMX6UL_CLK_ENET1_REF_125M is the correct
parent and shall be used instead.
Same applies for IMX6UL_CLK_ENET2_REF_SEL, for which IMX6UL_CLK_ENET2_REF_125M
is the correct parent.

Cc: stable@vger.kernel.org
Signed-off-by: Alex Michel <alex.michel@wiedemann-group.com>
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Link: https://lore.kernel.org/r/AS1P250MB0608F9CE4009DCE65C61EEDEA9922@AS1P250MB0608.EURP250.PROD.OUTLOOK.COM
Signed-off-by: Abel Vesa <abel.vesa@linaro.org>