Reset poky to before our libpam hacks

Things got a bit out of synch with openbmc-config due to the libpam
issues and the migration from the meta-* layers.

Revert the two previous commits and then put the latest poky in with the
libpam revert and get openbmc-config right again.

Revert "Revert "libpam: update 1.3.1 -> 1.5.1""

This reverts commit 87ddd3eab4df68e624b5350ccaab28b3b97547c0.

Revert "poky: subtree update:796be0593a..10c69538c0"

This reverts commit c723b72979bfac6362509cf1fe086900f6641f28.

Change-Id: I3a1f405193aee6a21fe0cd24be9927c143a23d9a
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/poky/meta/recipes-kernel/linux/linux-yocto-rt_5.4.bb b/poky/meta/recipes-kernel/linux/linux-yocto-rt_5.4.bb
index d505949..104ada2 100644
--- a/poky/meta/recipes-kernel/linux/linux-yocto-rt_5.4.bb
+++ b/poky/meta/recipes-kernel/linux/linux-yocto-rt_5.4.bb
@@ -11,13 +11,13 @@
         raise bb.parse.SkipRecipe("Set PREFERRED_PROVIDER_virtual/kernel to linux-yocto-rt to enable it")
 }
 
-SRCREV_machine ?= "baf3ccf7c7cfaf9515d8c8b3b639d7bbb0564594"
-SRCREV_meta ?= "1c358e19696827b594de26a221f110fc2647dfa8"
+SRCREV_machine ?= "97576fb7447efba82eb025bde3ae9ceb29939d5e"
+SRCREV_meta ?= "d626f9108d590d41e82b97cbffc380aa699e86e1"
 
 SRC_URI = "git://git.yoctoproject.org/linux-yocto.git;branch=${KBRANCH};name=machine \
            git://git.yoctoproject.org/yocto-kernel-cache;type=kmeta;name=meta;branch=yocto-5.4;destsuffix=${KMETA}"
 
-LINUX_VERSION ?= "5.4.85"
+LINUX_VERSION ?= "5.4.78"
 
 LIC_FILES_CHKSUM = "file://COPYING;md5=bbea815ee2795b2f4230826c0c6b8814"