subprojects: add phosphor-dbus-interfaces

Add wrap file for phosphor-dbus-interfaces to subprojects.

Change-Id: Idfe431d718f83cd892cc3d8f28fbee5bf602a458
Signed-off-by: Jagpal Singh Gill <paligill@gmail.com>
diff --git a/subprojects/phosphor-dbus-interfaces.wrap b/subprojects/phosphor-dbus-interfaces.wrap
new file mode 100644
index 0000000..346aa0c
--- /dev/null
+++ b/subprojects/phosphor-dbus-interfaces.wrap
@@ -0,0 +1,6 @@
+[wrap-git]
+url = https://github.com/openbmc/phosphor-dbus-interfaces.git
+revision = HEAD
+
+[provide]
+phosphor-dbus-interfaces = phosphor_dbus_interfaces_dep