witherspoon: Add stubbed dbus monitor bbappend

Prepare for future Witherspoon dbus monitor configuration files.

Change-Id: I04600ad7eac2257efdd6b70fb3ff6ac0d625f4dc
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-witherspoon/recipes-phosphor/dbus/phosphor-dbus-monitor-config-native%.bbappend b/meta-witherspoon/recipes-phosphor/dbus/phosphor-dbus-monitor-config-native%.bbappend
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/meta-witherspoon/recipes-phosphor/dbus/phosphor-dbus-monitor-config-native%.bbappend