meta-romulus: Add fan control yaml configs

1. The config follows Witherspoon's and remove water-cool/gpu/pcie
related configs.
2. Uses FanPwm interface instead of FanSpeed.
3. Removed zone_condition related config which is optional. Romulus is
always air cooled.
4. Updated to use groups for events.

Tested: Verified that fan control automatically adjust fan speeds based
        on temperatures.

Change-Id: I386c7e921557ef53b445cafe504d2927a76e8e38
Signed-off-by: Lei YU <mine260309@gmail.com>
diff --git a/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-zone-config-native/zones.yaml b/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-zone-config-native/zones.yaml
new file mode 100644
index 0000000..91df5c2
--- /dev/null
+++ b/meta-romulus/recipes-phosphor/fans/phosphor-fan-control-zone-config-native/zones.yaml
@@ -0,0 +1,13 @@
+manager_configuration:
+  power_on_delay: 20
+
+zone_configuration:
+
+#Air cooled zones
+- zone_conditions:
+  zones:
+    - zone: 0
+      full_speed: 255
+      default_floor: 195
+      increase_delay: 5
+      decrease_interval: 30