SR2-SE interfaces

Templates for SR2-SE cards. Interface layouts in slot 1 and slot 2 are different in case of SR2-se, so 2 different templates.

device-types/Nokia/7750-SR2se.yaml

+---
+manufacturer: Nokia
+model: 7750 SR2-se
+slug: nokia-7750-sr2se
+part_number: 3HE16467AARA01
+u_height: 5
+is_full_depth: true
+module-bays:
+  - name: slot1
+    position: '1'
+  - name: slot2
+    position: '2'