witherspoon-pfault-analysis: Add sdeventplus DEPEND

This is needed for an upcoming change that makes
witherspoon-pfault-analysis depend on sdeventplus.

(From meta-ibm rev: dd44eaa188fbdb79f0906932f3b9b9dda6fb5be0)

Change-Id: Iba5fa46b6bdbdf32db73af370f455a5fe77c3145
Signed-off-by: William A. Kennington III <wak@google.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-ibm/meta-witherspoon/recipes-phosphor/power/witherspoon-pfault-analysis.bb b/meta-ibm/meta-witherspoon/recipes-phosphor/power/witherspoon-pfault-analysis.bb
index 1d148df..31cc954 100644
--- a/meta-ibm/meta-witherspoon/recipes-phosphor/power/witherspoon-pfault-analysis.bb
+++ b/meta-ibm/meta-witherspoon/recipes-phosphor/power/witherspoon-pfault-analysis.bb
@@ -16,6 +16,7 @@
          autoconf-archive-native \
          openpower-dbus-interfaces \
          sdbus++-native \
+         sdeventplus \
          "
 
 RDEPENDS_${PN} += " \