Enable PSUSensor support

Add psusensor service to enable PSUSensor.

Tested By:
After BMC started, run ipmitool sensor list, all PSU sensors can show
correct name and value.

Signed-off-by: Cheng C Yang <cheng.c.yang@linux.intel.com>
Change-Id: I55d52c3cc71243a1db10a47551872b458ad9d21b
diff --git a/CMakeLists.txt b/CMakeLists.txt
index dc88000..e3bf538 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -222,4 +222,7 @@
 
 if (NOT DISABLE_PSU)
     install (TARGETS psusensor DESTINATION bin)
+    install (FILES
+                 ${SERVICE_FILE_SRC_DIR}/xyz.openbmc_project.psusensor.service
+                 DESTINATION ${SERVICE_FILE_INSTALL_DIR})
 endif ()
diff --git a/service_files/xyz.openbmc_project.psusensor.service b/service_files/xyz.openbmc_project.psusensor.service
new file mode 100644
index 0000000..ec4a56b
--- /dev/null
+++ b/service_files/xyz.openbmc_project.psusensor.service
@@ -0,0 +1,11 @@
+[Unit]
+Description=PSU Sensor
+StopWhenUnneeded=false
+
+[Service]
+Restart=always
+RestartSec=5
+ExecStart=/usr/bin/psusensor
+
+[Install]
+WantedBy=multi-user.target