crypto: qat - uint8_t is not large enough for accel_id

accel_id has to be large enough to hold ADF_MAX_DEVICES + 1
(which is > 1025) so uint8_t is too small.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>