FruDevice: Fix power match

Sometime the path got changed to Power0 from power0,
fix it to catch power change events.

Change-Id: If07f4dfe9dd63b15664a33af278c06002aa8cb7b
Signed-off-by: James Feist <james.feist@linux.intel.com>
diff --git a/src/FruDevice.cpp b/src/FruDevice.cpp
index 9ca578d..a8c6805 100644
--- a/src/FruDevice.cpp
+++ b/src/FruDevice.cpp
@@ -812,9 +812,9 @@
 
     sdbusplus::bus::match::match powerMatch = sdbusplus::bus::match::match(
         static_cast<sdbusplus::bus::bus&>(*systemBus),
-        "type='signal',interface='org.freedesktop.DBus.Properties',path_"
-        "namespace='/xyz/openbmc_project/Chassis/Control/"
-        "power0',arg0='xyz.openbmc_project.Chassis.Control.Power'",
+        "type='signal',interface='org.freedesktop.DBus.Properties',path='/xyz/"
+        "openbmc_project/Chassis/Control/"
+        "Power0',arg0='xyz.openbmc_project.Chassis.Control.Power'",
         eventHandler);
 
     int fd = inotify_init();