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/recipes-kernel/linux/linux-yocto-dev.bb b/import-layers/yocto-poky/meta/recipes-kernel/linux/linux-yocto-dev.bb
index bf67f81..5852b42 100644
--- a/import-layers/yocto-poky/meta/recipes-kernel/linux/linux-yocto-dev.bb
+++ b/import-layers/yocto-poky/meta/recipes-kernel/linux/linux-yocto-dev.bb
@@ -28,7 +28,7 @@
 SRCREV_machine ?= '${@oe.utils.conditional("PREFERRED_PROVIDER_virtual/kernel", "linux-yocto-dev", "${AUTOREV}", "29594404d7fe73cd80eaa4ee8c43dcc53970c60e", d)}'
 SRCREV_meta ?= '${@oe.utils.conditional("PREFERRED_PROVIDER_virtual/kernel", "linux-yocto-dev", "${AUTOREV}", "29594404d7fe73cd80eaa4ee8c43dcc53970c60e", d)}'
 
-LINUX_VERSION ?= "4.11-rc+"
+LINUX_VERSION ?= "4.12-rc+"
 LINUX_VERSION_EXTENSION ?= "-yoctodev-${LINUX_KERNEL_TYPE}"
 PV = "${LINUX_VERSION}+git${SRCPV}"