ARM: dts: imx7d-pico: Fix fec not work

Since hardware error that connecting 25M refclk
into MAC of imx7d that cause MAC not work.

Remove the refclk, correct MDIO PAD to make fec
work on pico7d.

Change-Id: I257e7740fa580c8eec8e821eed9a11489243951b
Signed-off-by: Haoran.Wang <elven.wang@nxp.com>
(cherry picked from commit b93fb939bf1c050e112f38dd0dde9ef3c59bdfe7)
1 file changed