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/conf/sanity.conf b/import-layers/yocto-poky/meta/conf/sanity.conf
index 46bdbeb..390d342 100644
--- a/import-layers/yocto-poky/meta/conf/sanity.conf
+++ b/import-layers/yocto-poky/meta/conf/sanity.conf
@@ -3,7 +3,7 @@
 # See sanity.bbclass
 #
 # Expert users can confirm their sanity with "touch conf/sanity.conf"
-BB_MIN_VERSION = "1.33.4"
+BB_MIN_VERSION = "1.35.0"
 
 SANITY_ABIFILE = "${TMPDIR}/abi_version"