Add a call to apply app0 configuration before DP INIT stage #496
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depends on: sonic-net/sonic-platform-common#474
Description
When NOS configures the CMIS modules, we need to be aware to a case where some of the lanes are disabled.
According to CMIS spec, in that case, an application 0 is needed to make sure all disabled lanes are zeroed.
Motivation and Context
This was done according to CMIS specification document.
How Has This Been Tested?
This addition to CMIS thread was tested with a CMIS active cable, with only 4 active lanes (and 4 de-active).
We made sure the link is up, right places are zeroed, and have traffic.
Additional Information (Optional)