Move power errors to org.open_power.witherspoon

Move xyz.openbmc_project.Power to org.open_power.Witherspoon.
This repo is Witherspoon specific, so moving to specific tree to have
its own namespace. Update generated file, and corresponding namespace
statements in the source files.

Change-Id: I10bd1eeeac5b5f391ca54bf361b249b7ad531852
Signed-off-by: Brandon Wyman <bjwyman@gmail.com>
diff --git a/power-sequencer/pgood_monitor.cpp b/power-sequencer/pgood_monitor.cpp
index 9e8abba..02f1725 100644
--- a/power-sequencer/pgood_monitor.cpp
+++ b/power-sequencer/pgood_monitor.cpp
@@ -14,7 +14,7 @@
  * limitations under the License.
  */
 #include <phosphor-logging/log.hpp>
-#include <xyz/openbmc_project/Power/Fault/error.hpp>
+#include <org/open_power/Witherspoon/Fault/error.hpp>
 #include "config.h"
 #include "elog-errors.hpp"
 #include "pgood_monitor.hpp"
@@ -29,7 +29,7 @@
 constexpr auto POWER_INTERFACE = "org.openbmc.control.Power";
 
 using namespace phosphor::logging;
-using namespace sdbusplus::xyz::openbmc_project::Power::Fault::Error;
+using namespace sdbusplus::org::open_power::Witherspoon::Fault::Error;
 
 bool PGOODMonitor::pgoodPending()
 {