RT-6.1: fix leafref violations

[kjahed]

Modifies RT-6.1 to also configure the key name of /lldp/interface when configuring /lldp/interface/enabled.

[OpenConfigBot]

Pull Request Functional Test Report for #2964 / 1a7a40e

Virtual Devices

Device	Test	Test Documentation	Job	Raw Log
Arista cEOS		RT-6.1: Core LLDP TLV Population
Cisco 8000E		RT-6.1: Core LLDP TLV Population
Cisco XRd		RT-6.1: Core LLDP TLV Population
Juniper ncPTX		RT-6.1: Core LLDP TLV Population
Nokia SR Linux		RT-6.1: Core LLDP TLV Population
Openconfig Lemming		RT-6.1: Core LLDP TLV Population

Hardware Devices

Device	Test	Test Documentation	Raw Log
Arista 7808		RT-6.1: Core LLDP TLV Population
Cisco 8808		RT-6.1: Core LLDP TLV Population
Juniper PTX10008		RT-6.1: Core LLDP TLV Population
Nokia 7250 IXR-10e		RT-6.1: Core LLDP TLV Population

Help

[coveralls]

Pull Request Test Coverage Report for Build 12752115187

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 55.268%

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Totals
Change from base Build 12738316881:	0.0%
Covered Lines:	1983
Relevant Lines:	3588

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💛 - Coveralls

[kjahed]

Not needed after #3369