fdt_support: Remove FDT_STATUS_FAIL_ERROR_CODE

fdt_support: Remove FDT_STATUS_FAIL_ERROR_CODE

Since no one uses this feature and I am not aware of any parsers of this
in Linux, remove it.

Signed-off-by: Marek Behún <[email protected]>
Reviewed-by: Stefan Roese <[email protected]>
Cc: Simon Glass <[email protected]>
Cc: Andy Shevchenko <[email protected]>
Cc: Pratyush Yadav <[email protected]>
Cc: Tim Harvey <[email protected]>
Cc: Michael Walle <[email protected]>
Cc: Priyanka Jain <[email protected]>
Reviewed-by: Simon Glass <[email protected]>