dt-bindings: fsl: add LS1043A/LS1046A/LS2080A compatible for SCFG and DCFG

SCFG and DCFG are SoC-specific devices can be found on SoCs like LS1021A,
LS1043A and LS1046A, this patch updates bindings for SCFG and DCFG to
reflect more SoCs.

Signed-off-by: Shaohui Xie <Shaohui.Xie@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>