Create ECS4100-12T (#2533)

* Create ECS4100-12T

* Update and rename ECS4100-12T to ECS4100-12T.yaml

Fixed fix errors

---------

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

device-types/Edgecore/ECS4100-12T.yaml

@@ -0,0 +1,39 @@
+---
+manufacturer: Edgecore
+model: ECS4100-12T
+slug: edgecore-ecs4100-12t
+part_number: ECS4100-12T
+u_height: 1
+is_full_depth: false
+console-ports:
+  - name: Console
+    type: rj-45
+power-ports:
+  - name: PS1
+    type: iec-60320-c14
+    maximum_draw: 25
+interfaces:
+  - name: eth1
+    type: 1000base-t
+  - name: eth2
+    type: 1000base-t
+  - name: eth3
+    type: 1000base-t
+  - name: eth4
+    type: 1000base-t
+  - name: eth5
+    type: 1000base-t
+  - name: eth6
+    type: 1000base-t
+  - name: eth7
+    type: 1000base-t
+  - name: eth8
+    type: 1000base-t
+  - name: eth9
+    type: 1000base-x-sfp
+  - name: eth10
+    type: 1000base-x-sfp
+  - name: eth11
+    type: 1000base-x-sfp
+  - name: eth12
+    type: 1000base-x-sfp