arm64: dts: ti: k3-j722s-evm: Drop redundant status within serdes0/serdes1

arm64: dts: ti: k3-j722s-evm: Drop redundant status within serdes0/serdes1

Since serdes0 and serdes1 are now enabled by default within the SoC
file, it is no longer necessary to enable them in the board file.

Hence, remove the redundant 'status = "okay"' within the serdes0 and
serdes1 device-tree nodes.

Signed-off-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Reviewed-by: Udit Kumar <u-kumar1@ti.com>
Link: https://lore.kernel.org/r/20250417123246.2733923-5-s-vadapalli@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>