meta-ampere: mtmitchell: enable PostCode

Enable PostCode from the phosphor-host-postd to support OEM Boot
Progress.

Tested:
1. Get Boot.Raw tree:
root@mtmitchell:~# busctl tree xyz.openbmc_project.State.Boot.Raw
`-/xyz
  `-/xyz/openbmc_project
    `-/xyz/openbmc_project/state
      `-/xyz/openbmc_project/state/boot
        `-/xyz/openbmc_project/state/boot/raw0

Signed-off-by: Hieu Huynh <hieuh@os.amperecomputing.com>
Change-Id: Idfd28d2d6512d7aa63339d5567628797538930b3
diff --git a/meta-ampere/meta-mitchell/recipes-ampere/packagegroups/packagegroup-obmc-ampere-apps.bb b/meta-ampere/meta-mitchell/recipes-ampere/packagegroups/packagegroup-obmc-ampere-apps.bb
index 2960d8a..700252d 100644
--- a/meta-ampere/meta-mitchell/recipes-ampere/packagegroups/packagegroup-obmc-ampere-apps.bb
+++ b/meta-ampere/meta-mitchell/recipes-ampere/packagegroups/packagegroup-obmc-ampere-apps.bb
@@ -27,6 +27,8 @@
                             phosphor-hostlogger \
                             phosphor-sel-logger \
                             phosphor-logging \
+                            phosphor-post-code-manager \
+                            phosphor-host-postd \
                          "
 
 SUMMARY:${PN}-system = "Ampere System"