Support for IBM Power7+ in-Nest cryptographic acceleration

configname: CONFIG_CRYPTO_DEV_NX

Linux Kernel Configuration
└─>Cryptographic API
└─>Hardware crypto devices
└─>Support for IBM Power7+ in-Nest cryptographic acceleration
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Support for Power7+ in-Nest cryptographic acceleration.