Install exit air sensor service file

This will enable it to run. Requires bitbake file
change.

Change-Id: I7d5e79da3a0ea1dc9d7cecdfb77f956099ac24d9
Signed-off-by: James Feist <james.feist@linux.intel.com>
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 06ff993..ee70413 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -140,6 +140,7 @@
     ${PROJECT_SOURCE_DIR}/service_files/xyz.openbmc_project.cpusensor.service
     ${PROJECT_SOURCE_DIR}/service_files/xyz.openbmc_project.fansensor.service
     ${PROJECT_SOURCE_DIR}/service_files/xyz.openbmc_project.hwmontempsensor.service
+    ${PROJECT_SOURCE_DIR}/service_files/xyz.openbmc_project.exitairsensor.service
 )
 
 install (TARGETS fansensor hwmontempsensor cpusensor adcsensor