meta-zaius: phosphor-ipmi-fru-properties: add machine suffix

For phosphor-ipmi-fru-properties, add zaius machine suffix to avoid poisoning other
machines using this layer.

Change-Id: Ie3f23278b696e78ac3a8a1a0374bfc3349493688
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/meta-zaius/recipes-phosphor/ipmi/phosphor-ipmi-fru-properties%.bbappend b/meta-zaius/recipes-phosphor/ipmi/phosphor-ipmi-fru-properties%.bbappend
index 72d991c..2072afd 100644
--- a/meta-zaius/recipes-phosphor/ipmi/phosphor-ipmi-fru-properties%.bbappend
+++ b/meta-zaius/recipes-phosphor/ipmi/phosphor-ipmi-fru-properties%.bbappend
@@ -1 +1 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_prepend_zaius := "${THISDIR}/${PN}:"