Updates to Transceiver-9: zr_laser_bias_current_test

[hattikals]

• Corrected the logic to get the opticalComponentName, in accordance with the YANG documentation.
• In the previous logic the code was to get the optical component name by traversing through the parents of the PORT component, this would lead to no results. Hence changed it to, find the OPTICAL_CHANNEL comp first and match its parent against HARDWARE_PORT of the interface.
• Current flow : PORT <-- TRANSCIEVER <-- OPTICAL_CHANNEL

[OpenConfigBot]

Pull Request Functional Test Report for #2893 / ca827d8dab91743226add2e0a7c03e32f239df1e

Virtual Devices

Device	Test	Test Documentation	Job	Raw Log
Arista cEOS		TRANSCEIVER-9: Telemetry: 400ZR TX laser bias current telemetry values streaming.
Cisco 8000E		TRANSCEIVER-9: Telemetry: 400ZR TX laser bias current telemetry values streaming.
Cisco XRd		TRANSCEIVER-9: Telemetry: 400ZR TX laser bias current telemetry values streaming.
Juniper ncPTX		TRANSCEIVER-9: Telemetry: 400ZR TX laser bias current telemetry values streaming.
Nokia SR Linux		TRANSCEIVER-9: Telemetry: 400ZR TX laser bias current telemetry values streaming.
Openconfig Lemming		TRANSCEIVER-9: Telemetry: 400ZR TX laser bias current telemetry values streaming.

Hardware Devices

Device	Test	Test Documentation	Raw Log
Arista 7808		TRANSCEIVER-9: Telemetry: 400ZR TX laser bias current telemetry values streaming.
Cisco 8808		TRANSCEIVER-9: Telemetry: 400ZR TX laser bias current telemetry values streaming.
Juniper PTX10008		TRANSCEIVER-9: Telemetry: 400ZR TX laser bias current telemetry values streaming.
Nokia 7250 IXR-10e		TRANSCEIVER-9: Telemetry: 400ZR TX laser bias current telemetry values streaming.

Help

[coveralls]

Pull Request Test Coverage Report for Build 8663836938

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 55.448%

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Totals
Change from base Build 8656729257:	0.0%
Covered Lines:	1949
Relevant Lines:	3515

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💛 - Coveralls

[hattikals]

Closing this as recent merge had similar changes