sample_ATR.py: fix pylint warnings
sample_ATR.py: fix pylint warnings

C: 31, 0: Wrong continued indentation (remove 6 spaces).
                 0xBE, 0x21, 0x13, 0x67, 0x29, 0x02, 0x01, 0x01, 0x81,
           |     ^ (bad-continuation)
C: 32, 0: Wrong continued indentation (remove 6 spaces).
                 0xCD, 0xB9])
           |     ^ (bad-continuation)

LudovicRousseau/pyscard,LudovicRousseau/pyscard,LudovicRousseau/pyscard