Revert "poky: subtree update:b23aa6b753..ad30a6d470"

This reverts commit af5e4ef732faedf66c6dc1756432e9de2ac72988.

This commit introduced openbmc/openbmc#3720 and no solution has been
forthcoming. Revert until we can get to the bottom of this.

Change-Id: I2fb0d81eb26cf3dadb2f2abdd1a1bb7a95eaf03c
diff --git a/poky/meta/conf/abi_version.conf b/poky/meta/conf/abi_version.conf
index 5318a10..e04343b 100644
--- a/poky/meta/conf/abi_version.conf
+++ b/poky/meta/conf/abi_version.conf
@@ -4,7 +4,7 @@
 # that breaks the format and have been previously discussed on the mailing list 
 # with general agreement from the core team.
 #
-OELAYOUT_ABI = "14"
+OELAYOUT_ABI = "12"
 
 #
 # HASHEQUIV_HASH_VERSION is injected into the output hash calculation used by