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-yocto-bsp/conf/layer.conf b/import-layers/yocto-poky/meta-yocto-bsp/conf/layer.conf
index 44dbca6..7b565f2 100644
--- a/import-layers/yocto-poky/meta-yocto-bsp/conf/layer.conf
+++ b/import-layers/yocto-poky/meta-yocto-bsp/conf/layer.conf
@@ -9,3 +9,4 @@
 BBFILE_PATTERN_yoctobsp = "^${LAYERDIR}/"
 BBFILE_PRIORITY_yoctobsp = "5"
 LAYERVERSION_yoctobsp = "3"
+LAYERSERIES_COMPAT_yoctobsp = "rocko"