meta-quanta: s6q: enable power policy

The power restore policy can be set to "AlwaysOn","Restore" or "None".
Set power policy to Restore by default.

Tested:
~# ipmitool chassis status
Power Restore Policy : previous

Signed-off-by: Joseph Fu <joseph.fu@quantatw.com>
Change-Id: I48baef59461233276b2402a3a61b89a5e3eaa3a4
diff --git a/meta-quanta/meta-s6q/recipes-phosphor/settings/phosphor-settings-manager/power-policy-set-default.override.yml b/meta-quanta/meta-s6q/recipes-phosphor/settings/phosphor-settings-manager/power-policy-set-default.override.yml
new file mode 100644
index 0000000..0886b4e
--- /dev/null
+++ b/meta-quanta/meta-s6q/recipes-phosphor/settings/phosphor-settings-manager/power-policy-set-default.override.yml
@@ -0,0 +1,5 @@
+/xyz/openbmc_project/control/host0/power_restore_policy:
+    - Interface: xyz.openbmc_project.Control.Power.RestorePolicy
+      Properties:
+          PowerRestorePolicy:
+              Default: RestorePolicy::Policy::Restore
diff --git a/meta-quanta/meta-s6q/recipes-phosphor/settings/phosphor-settings-manager_%.bbappend b/meta-quanta/meta-s6q/recipes-phosphor/settings/phosphor-settings-manager_%.bbappend
index b29e499..615702f 100644
--- a/meta-quanta/meta-s6q/recipes-phosphor/settings/phosphor-settings-manager_%.bbappend
+++ b/meta-quanta/meta-s6q/recipes-phosphor/settings/phosphor-settings-manager_%.bbappend
@@ -1,4 +1,5 @@
 FILESEXTRAPATHS:prepend:s6q := "${THISDIR}/${PN}:"
 
 SRC_URI:append:s6q = " file://chassis-capabilities.override.yml \
+                       file://power-policy-set-default.override.yml \
                      "