Yocto 2.4

Move OpenBMC to Yocto 2.4(rocko)

Tested: Built and verified Witherspoon and Palmetto images
Change-Id: I12057b18610d6fb0e6903c60213690301e9b0c67
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/import-layers/yocto-poky/meta-skeleton/conf/layer.conf b/import-layers/yocto-poky/meta-skeleton/conf/layer.conf
index aca1633..a15516a 100644
--- a/import-layers/yocto-poky/meta-skeleton/conf/layer.conf
+++ b/import-layers/yocto-poky/meta-skeleton/conf/layer.conf
@@ -13,3 +13,5 @@
 LAYERVERSION_skeleton = "1"
 
 LAYERDEPENDS_skeleton = "core"
+
+LAYERSERIES_COMPAT_skeleton = "rocko"