InterruptStop(): Log the libusb text instead of number
InterruptStop(): Log the libusb text instead of number

If libusb_cancel_transfer() fails we now use libusb_error_name() to get the
error message in text instead of just the error number.

The log message is now
00000008 ccid_usb.c:1399:InterruptStop() libusb_cancel_transfer failed: LIBUSB_ERROR_NOT_FOUND
instead of:
00000007 ccid_usb.c:1399:InterruptStop() libusb_cancel_transfer failed: -5

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