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/lib/oeqa/selftest/cases/buildoptions.py b/poky/meta/lib/oeqa/selftest/cases/buildoptions.py
index d0f6477..e91f0bd 100644
--- a/poky/meta/lib/oeqa/selftest/cases/buildoptions.py
+++ b/poky/meta/lib/oeqa/selftest/cases/buildoptions.py
@@ -33,10 +33,10 @@
         self.assertTrue(incremental_removed, msg = "Match failed in:\n%s" % log_data_removed)
 
     def test_ccache_tool(self):
-        bb_vars = get_bb_vars(['HOSTTOOLS_DIR'], 'm4-native')
-        p = bb_vars['HOSTTOOLS_DIR'] + "/" + "ccache"
-        if not os.path.isfile(p):
-            self.skipTest("No ccache binary found in %s" % bb_vars['HOSTTOOLS_DIR'])
+        bitbake("ccache-native")
+        bb_vars = get_bb_vars(['SYSROOT_DESTDIR', 'bindir'], 'ccache-native')
+        p = bb_vars['SYSROOT_DESTDIR'] + bb_vars['bindir'] + "/" + "ccache"
+        self.assertTrue(os.path.isfile(p), msg = "No ccache found (%s)" % p)
         self.write_config('INHERIT += "ccache"')
         self.add_command_to_tearDown('bitbake -c clean m4-native')
         bitbake("m4-native -c clean")