Fix sdbusplus subproject wrap

sdbusplus publishes sdbusplus_dep.  Add this to the subproject file.

Change-Id: If8ea5667510c8a67259d62dabb9ac7104f6db6df
Signed-off-by: Ed Tanous <etanous@nvidia.com>
diff --git a/subprojects/sdbusplus.wrap b/subprojects/sdbusplus.wrap
index d470130..7b076d0 100644
--- a/subprojects/sdbusplus.wrap
+++ b/subprojects/sdbusplus.wrap
@@ -1,3 +1,6 @@
 [wrap-git]
 url = https://github.com/openbmc/sdbusplus.git
 revision = HEAD
+
+[provide]
+sdbusplus = sdbusplus_dep