armv8: ls1043aqds: add IFC fixup in case QSPI is enabled

QSPI and IFC are pin-multiplexed on LS1043AQDS board. If QSPI is
enabled, IFC would not be initialized correctly. So disable the IFC
node for Linux.

Signed-off-by: Gong Qianyu <Qianyu.Gong@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>