uImage: adapt test output to file-5.41
File-5.40->5.41 upgrade brought uImage printing change which removed 0x prefixes in a few places: https://github.com/file/file/commit/905ca555b0e2bdcf9d2985bcc7c1c22e2229b088
This caused test faiure:
E AssertionError: assert '@@ -1 +1 @@\... 0XC63C4A06\n' == '@@ -1 +1 @@\... 0xC63C4A06\n'
E Skipping 127 identical leading characters in diff, use -v to show
E - Address: 0x00000000, Entry Point: 0x00000000, Header CRC: 0xF87AD200, Data CRC: 0x347161A5
E ? -- -- ^ ^
E + Address: 00000000, Entry Point: 00000000, Header CRC: 0XF87AD200, Data CRC: 0X347161A5
E ? ^ ^
The change adds new variant of expected output.