Change node name 'flash' to 'flash@0' to fix below CHECK_DTB warnings.
arch/arm/boot/dts/nxp/lpc/lpc4350-hitex-eval.dtb: flash-controller@40003000 (nxp,lpc1773-spifi): Unevaluated properties are not allowed ('flash' was unexpected)
from schema $id: http://devicetree.org/schemas/mtd/nxp,lpc1773-spifi.yaml#
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>