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-graphics/vulkan/vulkan-samples_git.bb b/poky/meta/recipes-graphics/vulkan/vulkan-samples_git.bb
index 896b248..3785723 100644
--- a/poky/meta/recipes-graphics/vulkan/vulkan-samples_git.bb
+++ b/poky/meta/recipes-graphics/vulkan/vulkan-samples_git.bb
@@ -9,7 +9,7 @@
            "
 
 UPSTREAM_CHECK_COMMITS = "1"
-SRCREV = "fdc8fab1a520df5566de3eda7b526b24f04e6379"
+SRCREV = "b4fe3addff337f3c264a6f7dd62be60c726fcc03"
 
 UPSTREAM_CHECK_GITTAGREGEX = "These are not the releases you're looking for"
 S = "${WORKDIR}/git"