meta-yadro: share boot initiator mailbox support

Boot Initiator Mailbox should be available on all our hardware.
This commit moves all required files and recipes to the meta-yadro.

(From meta-yadro rev: 9ee3c28294c6a87912edbcf09b999b926634f836)

Change-Id: Idc52bfb50c8f122662279a593de0ee40703ddb51
Signed-off-by: Alexander Filippov <a.filippov@yadro.com>
Signed-off-by: Ivan Mikhaylov <i.mikhaylov@yadro.com>
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
diff --git a/meta-yadro/recipes-phosphor/ipmi/phosphor-ipmi-host_%.bbappend b/meta-yadro/recipes-phosphor/ipmi/phosphor-ipmi-host_%.bbappend
new file mode 100644
index 0000000..a326584
--- /dev/null
+++ b/meta-yadro/recipes-phosphor/ipmi/phosphor-ipmi-host_%.bbappend
@@ -0,0 +1,6 @@
+FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+
+SRC_URI_append  = "\
+    file://0001-Add-support-for-persistent-only-settings.patch \
+    file://0002-Add-support-for-boot-initiator-mailbox.patch \
+"