Register caam device for hwrng API


Linux Kernel Configuration
└─>Cryptographic API
└─>Hardware crypto devices
└─>Freescale CAAM Job Ring driver backend
└─>Register caam device for hwrng API
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Selecting this will register the SEC4 hardware rng to
the hw_random API for supplying the kernel entropy pool.