phosphor-hwmon: Depend on sdeventplus

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

Change-Id: Ie654ff166fd21804a262a71b5532fed7e41f6316
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/recipes-phosphor/sensors/phosphor-hwmon_git.bb b/recipes-phosphor/sensors/phosphor-hwmon_git.bb
index b1e8117..1380043 100644
--- a/recipes-phosphor/sensors/phosphor-hwmon_git.bb
+++ b/recipes-phosphor/sensors/phosphor-hwmon_git.bb
@@ -17,6 +17,7 @@
 DEPENDS += "autoconf-archive-native"
 DEPENDS += " \
         sdbusplus \
+        sdeventplus \
         phosphor-dbus-interfaces \
         phosphor-logging \
         gpioplus \