scardcontrol: initialize the bRecvBuffer buffer
scardcontrol: initialize the bRecvBuffer buffer

Fill the bRecvBuffer receiving buffer with the "magic" value 0xAA to
detect what part of the buffer is filled by the reader.

LudovicRousseau/CCID,LudovicRousseau/CCID,hiranotaka/ccid-scr331-nttcom,hiranotaka/ccid-scr331-nttcom,hiranotaka/ccid-scr331-nttcom,LudovicRousseau/CCID,hiranotaka/ccid-scr331-nttcom