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/recipes-devtools/mtd/mtd-utils_git.bb b/poky/meta/recipes-devtools/mtd/mtd-utils_git.bb
index 8d6bbfc..9181413 100644
--- a/poky/meta/recipes-devtools/mtd/mtd-utils_git.bb
+++ b/poky/meta/recipes-devtools/mtd/mtd-utils_git.bb
@@ -17,7 +17,7 @@
            file://add-exclusion-to-mkfs-jffs2-git-2.patch \
            "
 
-S = "${WORKDIR}/git"
+S = "${WORKDIR}/git/"
 
 EXTRA_OECONF += "--enable-install-tests"