[PATCH] eal: add support for TRNG with Arm RNG feature

[Wathsala Wathawana Vithanage]

> 
> Without a rationale why rte_csrand() functionality is something that should be
> in DPDK, and a rationale why the ARM CPU CSRNG is superior to getentropy(),
> it doesn't really matter how the patch set looks like.
> 
> I've repeatedly asked for this information, and you've repeatedly ignored it.
> This does not further your cause.
> 
 
I don't want to get into a debate on what's more superior because DPDK already have similar
Setups, take OpenSSL and Marvell's security accelerator for instance. Rationale is simple it boils
down to freedom of choice. 

I have been reiterating that I'm ready to make Kernel getrandom() the default in rte_csrand()
and HW RNG (not limited Arm) a build time option along with your other demands for various
optimizations. Having a build time option to enable HW CSRNG doesn't hinder your freedom to
choose a CSRNG implementation of your linking. 
Neither you nor I are in a place to decide what's right for others; the best we can do is to
collaborate on providing them with options. Leave the decision to users, application developers,
and integrators.

I believe that the coexistence of support for OpenSSL and other HW security accelerators in
DPDK already establishes rationale and precedent.