Mathew McBride authored Sep 14, 2021 and Tom Rini committed Sep 14, 2021

In 92055e13 ("image: Drop if/elseif hash selection in calculate_hash()")
the FIT image hash verification code was simplified to use the hash API.

This broke verification of CRC32 hash FIT images (e.g NXP MC firmware)
as the hash API crc32 calculates in big endian (refer commit
74a18ee8, "crc32: Correct endianness of crc32 result"), whereas
the previous call directly to crc32_wd does not do a byteswap.

Example:
dumpimage -l qoriq-mc-binary/ls1088a/mc_ls1088a_10.29.1.itb
FIT description: MC Firmware
Created:         Fri Aug 27 14:14:32 2021
...
  Hash algo:    crc32
  Hash value:   c09d959c
Was returning FB9D3710 to fit_image_check_hash instead of C09D959C

Correct the byte order in the crc32_uimage_fixup so the little endian
values are returned.

Fixes: 92055e13

 "image: Drop if/elseif hash selection in calculate_hash()"
Signed-off-by: Mathew McBride <matt@traverse.com.au>