Install service unit files, busconfig and udev rules from the package.

This change required as a part of privilege separation work:
  https://github.com/openbmc/openbmc/issues/3383

The dependant change in openbmc repo:
  https://gerrit.openbmc-project.xyz/c/openbmc/openbmc/+/40359

Signed-off-by: Anton D. Kachalov <gmouse@google.com>
Change-Id: I89aec71b446e0b7be40a10e1cd94ea16d891a277
diff --git a/70-hwmon.rules b/70-hwmon.rules
new file mode 100644
index 0000000..503b2d0
--- /dev/null
+++ b/70-hwmon.rules
@@ -0,0 +1,2 @@
+SUBSYSTEM=="hwmon", ACTION=="add", RUN="/usr/bin/start_hwmon.sh start %p %E{OF_FULLNAME}"
+SUBSYSTEM=="hwmon", ACTION=="remove", RUN="/usr/bin/start_hwmon.sh stop %p %E{OF_FULLNAME}"