Add Dell Unity XT 380 Storage Array (#2622)

* Create Unity-XT-380.yaml

* dell-unity-xt-380

 Lint Updates - Trailing spaces

* Update Unity-XT-380.yaml

* Create Unity-XT-380-Controller.yaml

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Co-authored-by: Harry <Harry@cadby.co.uk>

device-types/Dell/Unity-XT-380-Controller.yaml

@@ -0,0 +1,25 @@
+---
+manufacturer: Dell
+model: Unity XT 380 Controller
+slug: dell-unity-xt-380-controller
+u_height: 0
+is_full_depth: true
+airflow: front-to-rear
+subdevice_role: child
+interfaces:
+  - name: SP-A ETH1
+    type: 1000base-t
+    mgmt_only: true
+  - name: SP-A ETH2
+    type: 10gbase-t
+  - name: SP-A ETH3
+    type: 10gbase-t
+  - name: SP-A ETH4
+    type: 10gbase-x-sfpp
+  - name: SP-A ETH5
+    type: 10gbase-x-sfpp
+module-bays:
+  - name: I/O 1
+    position: '1'
+  - name: I/O 2
+    position: '2'

device-types/Dell/Unity-XT-380.yaml

@@ -0,0 +1,19 @@
+---
+manufacturer: Dell
+model: Unity XT 380
+slug: dell-unity-xt-380
+part_number: 100-566-075-03
+u_height: 2
+is_full_depth: true
+weight: 24.6
+weight_unit: kg
+airflow: front-to-rear
+subdevice_role: parent
+device-bays:
+  - name: Controller 1
+  - name: Controller 2
+module-bays:
+  - name: PSU1
+    position: '1'
+  - name: PSU2
+    position: '2'