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-extended/timezone/timezone.inc b/poky/meta/recipes-extended/timezone/timezone.inc
index 8eb17c5..32723f3 100644
--- a/poky/meta/recipes-extended/timezone/timezone.inc
+++ b/poky/meta/recipes-extended/timezone/timezone.inc
@@ -6,7 +6,7 @@
 LICENSE = "PD & BSD & BSD-3-Clause"
 LIC_FILES_CHKSUM = "file://LICENSE;md5=c679c9d6b02bc2757b3eaf8f53c43fba"
 
-PV = "2020b"
+PV = "2020a"
 
 SRC_URI =" http://www.iana.org/time-zones/repository/releases/tzcode${PV}.tar.gz;name=tzcode \
            http://www.iana.org/time-zones/repository/releases/tzdata${PV}.tar.gz;name=tzdata \
@@ -14,5 +14,7 @@
 
 UPSTREAM_CHECK_URI = "http://www.iana.org/time-zones"
 
-SRC_URI[tzcode.sha256sum] = "47eff8944de4a64f7629b851e4a32338ab12c9b73edd62063795167ff1fe43da"
-SRC_URI[tzdata.sha256sum] = "9b053f951d245ce89d850b96ee4711d82d833559b1fc96ba19f90bc4d745e809"
+SRC_URI[tzcode.md5sum] = "f87c3477e85a5c4b00df0def6c6a0055"
+SRC_URI[tzcode.sha256sum] = "7d2af7120ee03df71fbca24031ccaf42404752e639196fe93c79a41b38a6d669"
+SRC_URI[tzdata.md5sum] = "96a985bb8eeab535fb8aa2132296763a"
+SRC_URI[tzdata.sha256sum] = "547161eca24d344e0b5f96aff6a76b454da295dc14ed4ca50c2355043fb899a2"