scd: Internal CCID driver: Call libusb_clear_halt at ccid_setup_intr.

* scd/ccid-driver.c (ccid_setup_intr): Reset the endpoint.
(ccid_vendor_specific_init): Don't call libusb_clear_halt.

Backport master commit of:

6af978713e4c69d7814f47e709f1dfb3fe9076d1

• Signed-off-by: NIIBE Yutaka <gniibe@fsij.org>