Yocto 2.3

Move OpenBMC to Yocto 2.3(pyro).

Tested: Built and verified Witherspoon and Palmetto images
Change-Id: I50744030e771f4850afc2a93a10d3507e76d36bc
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
Resolves: openbmc/openbmc#2461
diff --git a/import-layers/meta-openembedded/meta-python/recipes-devtools/python/python-serpent.inc b/import-layers/meta-openembedded/meta-python/recipes-devtools/python/python-serpent.inc
new file mode 100644
index 0000000..0b1aa91
--- /dev/null
+++ b/import-layers/meta-openembedded/meta-python/recipes-devtools/python/python-serpent.inc
@@ -0,0 +1,13 @@
+SUMMARY = "Serialization based on ast.literal_eval"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://PKG-INFO;md5=3773e39c491bb1f9ccc98389d57169d7"
+
+SRC_URI[md5sum] = "cdef596f727cb6b4176c89769d2d41ee"
+SRC_URI[sha256sum] = "946b2c837f889971df3575af9dadd8f09bfe48549ebc1b9f6434263b653707ce"
+
+inherit pypi
+
+RDEPENDS_${PN} += "\
+    ${PYTHON_PN}-netclient \
+    ${PYTHON_PN}-numbers \
+    "