meta-quanta: gbs: inband bmc/bios image update

gbs-bmc-update and gbs-bios-update packages do
inband bmc/bios image update via Nuvoton PCI mailbox

Tested:
Set PCI mailbox memory space as writable
~# sudo setpci -d 1050:0750 04.B=02

bmc update:
~# sudo burn_my_bmc --command update --interface ipmipci
--image image-bmc --sig image-bmc.sig --type image

bios update:
~# sudo burn_my_bmc --command update --interface ipmipci
--image image-bios --sig image-bios.sig --type bios

Signed-off-by: George Hung <george.hung@quantatw.com>
Change-Id: I69df209d74ae8321b8f50b3cd390eca79a41e902
diff --git a/meta-gbs/recipes-gbs/gbs-bmc-update/files/config-bmc.json b/meta-gbs/recipes-gbs/gbs-bmc-update/files/config-bmc.json
new file mode 100644
index 0000000..16c7151
--- /dev/null
+++ b/meta-gbs/recipes-gbs/gbs-bmc-update/files/config-bmc.json
@@ -0,0 +1,21 @@
+[{
+    "blob": "/flash/image",
+    "handler": {
+        "type": "file",
+        "path": "/run/initramfs/bmc-image"
+    },
+    "actions": {
+        "preparation": {
+            "type": "skip"
+        },
+        "verification": {
+            "type": "systemd",
+            "unit": "phosphor-ipmi-flash-bmc-verify.service"
+        },
+        "update": {
+            "type": "systemd",
+            "unit": "reboot.target",
+            "mode": "replace-irreversibly"
+        }
+    }
+}]