meta-openbmc-machines: Add Romulus

Romulus is a Power9 OpenPOWER system developed by IBM.

TODO:
 - bump skeleton for config/Romulus.py
 - bump kernel for device tree

Change-Id: I9779f213e3ebc6286f6eaac35650e6c4fe395f80
Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/meta-romulus/recipes-kernel/linux/linux-obmc/romulus.cfg b/meta-romulus/recipes-kernel/linux/linux-obmc/romulus.cfg
new file mode 100644
index 0000000..01fb1c1
--- /dev/null
+++ b/meta-romulus/recipes-kernel/linux/linux-obmc/romulus.cfg
@@ -0,0 +1,3 @@
+CONFIG_HWMON=y
+CONFIG_SENSORS_TMP421=y
+CONFIG_SENSORS_MAX31785=y