meta-zaius: checkstop-monitor: add machine suffix

For checkstop-monitor, add zaius machine suffix to avoid poisoning other
machines using this layer.

(From meta-ingrasys rev: c793f7f09b9e8781ae5de2f9ca9bdcc4265e096f)

Change-Id: I673de3f8fa1cefa776e3d85b702afeaa3d92d438
Signed-off-by: Patrick Venture <venture@google.com>
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/meta-ingrasys/meta-zaius/recipes-phosphor/host/checkstop-monitor.bbappend b/meta-ingrasys/meta-zaius/recipes-phosphor/host/checkstop-monitor.bbappend
index 72d991c..2072afd 100644
--- a/meta-ingrasys/meta-zaius/recipes-phosphor/host/checkstop-monitor.bbappend
+++ b/meta-ingrasys/meta-zaius/recipes-phosphor/host/checkstop-monitor.bbappend
@@ -1 +1 @@
-FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:"
+FILESEXTRAPATHS_prepend_zaius := "${THISDIR}/${PN}:"