pyphosphor: split into subpackages

Add namespace packages for packages that install python modules
into the obmc site-packages namespace.

Split the modules in the dbuslib and utils dirs into a dbus and
utils package.

This enables more granular dependency expression in other
recipes.

Change-Id: I6fd8abc1a56584f25b300260370c8ed2ed9e03ec
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-phosphor/common/recipes-phosphor/dbus/obmc-rest.bb b/meta-phosphor/common/recipes-phosphor/dbus/obmc-rest.bb
index 0e4f5ba..8a747f0 100644
--- a/meta-phosphor/common/recipes-phosphor/dbus/obmc-rest.bb
+++ b/meta-phosphor/common/recipes-phosphor/dbus/obmc-rest.bb
@@ -18,7 +18,8 @@
         python-bottle \
         python-spwd \
         python-netserver \
-        pyphosphor \
+        pyphosphor-utils \
+        pyphosphor-dbus \
         "
 SRC_URI += "git://github.com/openbmc/phosphor-rest-server"