board: freescale: lx216x : increase fdt blob size

board: freescale: lx216x : increase fdt blob size

Increase fdt blob size for lx2160 and lx2162 series
to fix below errors/warnings during device tree fixup.

Unable to update property /soc/spi@2100000:status, err=FDT_ERR_NOSPACE
Unable to update property /soc/spi@2110000:status, err=FDT_ERR_NOSPACE
Unable to update property /soc/spi@2120000:status, err=FDT_ERR_NOSPACE
WARNING: could not set reg FDT_ERR_NOSPACE.
WARNING unable to set iommus: FDT_ERR_NOSPACE

Signed-off-by: Wasim Khan <wasim.khan@nxp.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>