openbmc oem code: add ethStatsCmd

ethStatsCmd is used by phosphor-ipmi-ethstats

Change-Id: I481bf00b71cd483720c1d4824f7267a0c1e7e51f
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/host-ipmid/oemopenbmc.hpp b/host-ipmid/oemopenbmc.hpp
index 02e7e5c..101e715 100644
--- a/host-ipmid/oemopenbmc.hpp
+++ b/host-ipmid/oemopenbmc.hpp
@@ -15,6 +15,7 @@
     i2cCmd = 2,
     flashCmd = 3,
     fanManualCmd = 4,
+    ethStatsCmd = 48,
     blobTransferCmd = 128,
 };