phosphor-ipmi-ethstats: Disable building tests

We don't yet use ptest so we are wasting cycles building tests

Change-Id: I2145b89a6f5a50969456858addb73258053c99ea
Signed-off-by: William A. Kennington III <wak@google.com>
diff --git a/meta-phosphor/recipes-phosphor/ipmi/phosphor-ipmi-ethstats_git.bb b/meta-phosphor/recipes-phosphor/ipmi/phosphor-ipmi-ethstats_git.bb
index 9af52eb..957dd36 100644
--- a/meta-phosphor/recipes-phosphor/ipmi/phosphor-ipmi-ethstats_git.bb
+++ b/meta-phosphor/recipes-phosphor/ipmi/phosphor-ipmi-ethstats_git.bb
@@ -22,3 +22,5 @@
 FILES_${PN}-dev_append = " ${libdir}/ipmid-providers/lib*${SOLIBSDEV} ${libdir}/ipmid-providers/*.la"
 
 HOSTIPMI_PROVIDER_LIBRARY += "libethstatscmd.so"
+
+EXTRA_OECONF += "--disable-tests"