mifare: use proper format for integers (-Wformat)

Properly print signed and unsigned integers.  This fixes warnings like:

    plugins/mifare.c: In function ‘mifare_read’:
    plugins/mifare.c:836:33: error: format ‘%d’ expects argument of type ‘int’, but argument 2 has type ‘unsigned int’ [-Werror=format=]
      836 |   near_error("Mifare tag type [%d] not supported.", tgt_subtype);
          |                                ~^                   ~~~~~~~~~~~
          |                                 |                   |
          |                                 int                 unsigned int
          |                                %d

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
1 file changed