Fix copy/paste errors in sensor type interfaces

CFMSensor, IpmbSensor, and MCUTempSensor had been identifying themselves
as ExitAirTemp sensors, presumably due to having been copy/pasted and
incompletely modified when they were first added.

Signed-off-by: Zev Weiss <zev@bewilderbeest.net>
Change-Id: Id725d2fd3d1290b60399b1832e7912cf8a690e39
diff --git a/src/MCUTempSensor.cpp b/src/MCUTempSensor.cpp
index 7befa92..2786304 100644
--- a/src/MCUTempSensor.cpp
+++ b/src/MCUTempSensor.cpp
@@ -56,8 +56,9 @@
                              uint8_t busId, uint8_t mcuAddress,
                              uint8_t tempReg) :
     Sensor(escapeName(sensorName), std::move(thresholdData),
-           sensorConfiguration, "xyz.openbmc_project.Configuration.ExitAirTemp",
-           false, false, mcuTempMaxReading, mcuTempMinReading, conn),
+           sensorConfiguration,
+           "xyz.openbmc_project.Configuration.MCUTempSensor", false, false,
+           mcuTempMaxReading, mcuTempMinReading, conn),
     busId(busId), mcuAddress(mcuAddress), tempReg(tempReg),
     objectServer(objectServer), waitTimer(io)
 {