[Pcsclite-muscle] Missing checks of ATRDecodeAtr returns

[Maksim Ivanov]

Hello,

The callers of the ATRDecodeAtr() function (SCardConnect() and
SCardReconnect() in winscard.c) don't check its return value, which
might potentially cause reads of uninitialized variables
|availableProtocols| and |defaultProtocol| and unexpected side
effects.


Regards,
Maksim