crypto/qat: add device files

crypto/qat: add device files

This commit adds new qat_device file.
Following objects were moved:

qat_crypto.h => qat_device.h
- struct qat_pmd_private
- uint8_t cryptodev_qat_driver_id
- int qat_crypto_sym_qp_release (EXTERN)
- int qat_dev_config()
- int qat_dev_start()
- void qat_dev_stop()
- int qat_dev_close()
- void qat_dev_info_get()
qat_crypto.c => qat_device.c
- int qat_dev_config()
- int qat_dev_start()
- void qat_dev_stop()
- int qat_dev_close()
- void qat_dev_info_get()

Signed-off-by: Arkadiusz Kusztal <arkadiuszx.kusztal@intel.com>
Signed-off-by: Fiona Trahe <fiona.trahe@intel.com>