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/yocto-poky/meta/classes/kernelsrc.bbclass b/import-layers/yocto-poky/meta/classes/kernelsrc.bbclass
index 9efd46a..675d40e 100644
--- a/import-layers/yocto-poky/meta/classes/kernelsrc.bbclass
+++ b/import-layers/yocto-poky/meta/classes/kernelsrc.bbclass
@@ -1,7 +1,7 @@
 S = "${STAGING_KERNEL_DIR}"
-do_fetch[noexec] = "1"
-do_unpack[depends] += "virtual/kernel:do_patch"
-do_unpack[noexec] = "1"
+deltask do_fetch
+deltask do_unpack
+do_patch[depends] += "virtual/kernel:do_patch"
 do_patch[noexec] = "1"
 do_package[depends] += "virtual/kernel:do_populate_sysroot"
 KERNEL_VERSION = "${@get_kernelversion_file("${STAGING_KERNEL_BUILDDIR}")}"