Add host ipmi feature

Add a distro/machine feature for Host IPMI.

Change-Id: I873e5a37236ab408890e967109f16bc1926503be
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/conf/machine/include/sample.inc b/conf/machine/include/sample.inc
index cd41c72..cdf10de 100644
--- a/conf/machine/include/sample.inc
+++ b/conf/machine/include/sample.inc
@@ -3,6 +3,7 @@
         obmc-phosphor-chassis-mgmt \
         obmc-phosphor-sensor-mgmt \
         obmc-phosphor-flash-mgmt \
+        obmc-host-ipmi \
         "
 
 PREFERRED_PROVIDER_virtual/obmc-host-ipmi-hw = "host-ipmi-hw-example"