PowerPC 4xx generic true random number generator support

configname: CONFIG_HW_RANDOM_PPC4XX

Linux Kernel Configuration
└─>Cryptographic API
└─>Hardware crypto devices
└─>PowerPC 4xx generic true random number generator support
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This option provides the kernel-side support for the TRNG hardware
found in the security function of some PowerPC 4xx SoCs.