This patch makes some improvements to the security instance setup for
the AESNI-MB PMD, as follows:
- fix potential memory leak where the security instance was not freed if
an error occurred later in the device creation
- tidy-up security instance initialization code by moving it all,
including enabling the RTE_CRYPTODEV_FF_SECURITY feature, into one
'#ifdef AESNI_MB_DOCSIS_SEC_ENABLED' block
Fixes: fda5216fba ("crypto/aesni_mb: support DOCSIS protocol")
Signed-off-by: David Coyle <david.coyle@intel.com>
Acked-by: Pablo de Lara <pablo.de.lara.guarch@intel.com>