meta-facebook: catalina: set empty snoop device

In Catalina, the postcode will be updated by IPMI SBMR Send Boot
Progress command. We will use the implementation in fb-ipmi-oem[1] to
replace direct access of device node.

[1] https://gerrit.openbmc.org/c/openbmc/fb-ipmi-oem/+/71599

Change-Id: Ic5c8a7a389268212dfc143594ff9630ec0dc8b5d
Signed-off-by: Potin Lai <potin.lai@quantatw.com>
diff --git a/meta-facebook/meta-catalina/recipes-phosphor/host/phosphor-host-postd_%.bbappend b/meta-facebook/meta-catalina/recipes-phosphor/host/phosphor-host-postd_%.bbappend
new file mode 100644
index 0000000..6e2f476
--- /dev/null
+++ b/meta-facebook/meta-catalina/recipes-phosphor/host/phosphor-host-postd_%.bbappend
@@ -0,0 +1 @@
+SNOOP_DEVICE = ""