linux-phytec-ti

net: hsr: Re-use Kconfig option to support PRP

PRP, Parallel Redundancy Protocol is another redundancy
protocol defined by IEC62439-4 similar to HSR. PRP uses
a RCT, Redundancy Control Trailer appended to the end
of a Ethernet frame to implement redundancy. There are
many similarities between these protocols so that existing
code for HSR can be enhanced to support PRP. So as
a first step, rename the existing CONFIG_HSR to
CONFIG_HSR_PRP to introduce PRP.

Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>