crypto: qat - remove redundant prototypes in qat_c62x

Move the definition of the adf_driver structure and remove the redundant
prototypes for the functions adf_probe() and adf_remove() in the
qat_c62x driver.

Also move the pci_device_id table close to where it is used and drop the
inner comma as it is not required.

This does not introduce any functional change.

Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>