Update error YAML path

The YAML files are moving from xyz/openbmc_project/Power to
org/open_power/Witherspoon.

Resolves: openbmc/openbmc#2334

Change-Id: Ib408ef99885b034e2ab811cca05f00a7ebfee413
Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
2 files changed