meson: add subproject wraps for current dependencies

Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
Change-Id: I561ab5fa76b8cd7f7d7aac9fd89d471846dcf488
diff --git a/subprojects/sdbusplus.wrap b/subprojects/sdbusplus.wrap
new file mode 100644
index 0000000..7b076d0
--- /dev/null
+++ b/subprojects/sdbusplus.wrap
@@ -0,0 +1,6 @@
+[wrap-git]
+url = https://github.com/openbmc/sdbusplus.git
+revision = HEAD
+
+[provide]
+sdbusplus = sdbusplus_dep