phosphor-hwmon: Depend on sdeventplus

An upcoming change to phosphor-hwmon will require this support.

(From meta-phosphor rev: 4223a356115e8218946f8f85788331b7b337e54d)

Change-Id: I53a409b5dd021fa2e20bc137cab05875daf96056
Signed-off-by: William A. Kennington III <wak@google.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-phosphor/recipes-phosphor/sensors/phosphor-hwmon_git.bb b/meta-phosphor/recipes-phosphor/sensors/phosphor-hwmon_git.bb
index b1e8117..1380043 100644
--- a/meta-phosphor/recipes-phosphor/sensors/phosphor-hwmon_git.bb
+++ b/meta-phosphor/recipes-phosphor/sensors/phosphor-hwmon_git.bb
@@ -17,6 +17,7 @@
 DEPENDS += "autoconf-archive-native"
 DEPENDS += " \
         sdbusplus \
+        sdeventplus \
         phosphor-dbus-interfaces \
         phosphor-logging \
         gpioplus \