wspoon: Fix max31785 hwmon startup

The max31785 hwmon instance fails to start after a systemd patch was
removed to handle special characters in the device paths. This uses
`systemd-escape` to escape and unescape the device path when the udev
rule triggers the max31785 hwmon startup script.

Resolves openbmc/openbmc#3443

Change-Id: I4a504aaae0b0692e8838f66f8d7c37415e9566d0
Signed-off-by: Matthew Barth <msbarth@us.ibm.com>
3 files changed