arm64: dts: fsl: remove big-endian field from IFC controller

As per IFC binding, Absence of "little-endian" field causes registers
access in big-endian mode.
So no need to set explicit big-endian field IFC node for LS1043A and
LS1046A.

Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>