Refactor encapsulation dot1q {{ dot1q }} to encapsulation dot1Q {{ dot1q }} for l3 interfaces or sub-ifs

[michael-edobor]

Likely due to inconsistencies between Cisco IOS' representation between Switching platforms and routing platforms.

This issue is causing the parser to not fully capture or records configs. Can be fixed by refactoring

encapsulation dot1q {{ dot1q }} to encapsulation dot1Q {{ dot1q }} in line 25

[tbotnz]

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