USB: f_ccid: Fix bug in handling the control transfers

The status phase is not queued for the ABORT control transfer.
The req->length will be set to 0 by the composite before
delegating the command to the function drivers. Comparing it
against w_length is a bug.

Change-Id: I4abac60866f288241a3f04592ee087f88d13c329
Signed-off-by: Pavankumar Kondeti <pkondeti@codeaurora.org>