arm64: dts: imx91-9x9-qsb: remove unused property clock-frequency from mdio node

The clock-frequency property is not implemented. Remove it to clean up the
device tree.

Signed-off-by: Joy Zou <joy.zou@nxp.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
This commit is contained in:
Joy Zou 2026-05-19 19:15:15 +08:00 • committed by Frank Li
commit dcb42d491e