openpower-p9: disable host watchdog

Hostboot currently does not have IPMI support enabled on P9
systems.  Therefore, we need to disable the host watchdog.

Temporary workaround to be removed with openbmc/openbmc#993.

Change-Id: I875a3927af6ec34d2caf4c694b0a89c35a2bff74
Signed-off-by: Patrick Williams <patrick@stwcx.xyz>
diff --git a/meta-zaius/recipes-phosphor/chassis/obmc-control-chassis.bbappend b/meta-zaius/recipes-phosphor/chassis/obmc-control-chassis.bbappend
new file mode 100644
index 0000000..d68eeb1
--- /dev/null
+++ b/meta-zaius/recipes-phosphor/chassis/obmc-control-chassis.bbappend
@@ -0,0 +1 @@
+SRC_URI += "file://skeleton-0001-Temporarily-disable-watchdog-support.patch"