OpTestNVRAM: Use ssh/IPMI get_console() to consolidate skiroot/OS tests
OpTestNVRAM: Use ssh/IPMI get_console() to consolidate skiroot/OS tests

We now just have *one* block of code to do the NVRAM tests. It's
run either against an IPMI console or over an SSH connection depending
on the test case.

Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.vnet.ibm.com>

open-power/op-test-framework,open-power/op-test-framework,open-power/op-test-framework