new setting to quiesce system on hw errors

See the following design doc for more info:
https://github.com/openbmc/docs/blob/master/designs/fail-boot-on-hw-error.md

The new D-Bus interface is defined here:
https://github.com/openbmc/phosphor-dbus-interfaces/blob/master/xyz/openbmc_project/Logging/Settings.interface.yaml

(From meta-phosphor rev: 6f5102fa5e2adc8451aa81ad08309f08fbf131b4)

Change-Id: Idc6f2ae909216222dc8b1ac25ccc959c95abe347
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/meta-phosphor/recipes-phosphor/settings/phosphor-settings-defaults/defaults.yaml b/meta-phosphor/recipes-phosphor/settings/phosphor-settings-defaults/defaults.yaml
index d75333e..3541fdb 100644
--- a/meta-phosphor/recipes-phosphor/settings/phosphor-settings-defaults/defaults.yaml
+++ b/meta-phosphor/recipes-phosphor/settings/phosphor-settings-defaults/defaults.yaml
@@ -128,6 +128,12 @@
           Enabled:
              Default: 'false'
 
+/xyz/openbmc_project/logging/settings:
+    - Interface: xyz.openbmc_project.Logging.Settings
+      Properties:
+          QuiesceOnHwError:
+             Default: 'false'
+
 /xyz/openbmc_project/software/apply_time:
     - Interface: xyz.openbmc_project.Software.ApplyTime
       Properties: