meta-romulus: add occ-control-config-native

openpower-occ-control requires a sensor header file generated from
occ_sensor.yaml. By default it uses an example yaml, which does not fit
for Romulus.

Add romulus-occ-control-config-native.bb to use its own
occ_sensor.yaml, so that the package uses the correct config.

Tested: Verify the build uses the correct config generated from
        Romulus's occ_sensor.yaml.

Change-Id: Iadf1e54e5b26865a029b39a60b8412bb4a13c1a7
Signed-off-by: Lei YU <mine260309@gmail.com>
diff --git a/meta-romulus/conf/machine/romulus.conf b/meta-romulus/conf/machine/romulus.conf
index ddbc7db..4b580a2 100644
--- a/meta-romulus/conf/machine/romulus.conf
+++ b/meta-romulus/conf/machine/romulus.conf
@@ -20,3 +20,4 @@
 PREFERRED_PROVIDER_virtual/phosphor-ipmi-fru-read-inventory = "romulus-ipmi-fru-read-inventory-native"
 PREFERRED_PROVIDER_virtual/phosphor-ipmi-inventory-sel = "romulus-ipmi-inventory-sel-native"
 PREFERRED_PROVIDER_virtual/phosphor-logging-callouts = "romulus-phosphor-logging-callouts-native"
+PREFERRED_PROVIDER_virtual/openpower-occ-control-config-native = "romulus-occ-control-config-native"