Dependancy for after suspend tests need to be revised (hybrid graphics)

[Jerry Kao]

[Summary]
When running somerville-iev-full test plan on I+N system (201803-26172), the test plan/order is as pastebin https://paste.ubuntu.com/p/b9N5wkV957/
An issue here is that there were 2 suspend tests running with discrete graphics (Nvidia, LP:1832662). However in this case, suspend does not work with Nvidia graphic, both of them were failed.
Another following issue is, almost all after suspend tests have dependency with test suspend_advance, so all of them were skipped.

We should fix the dependency issue for hybrid graphics.
As we have separate suspend test cases for graphic 1 and graphic 2, the after suspend cases should depend to corresponding graphic suspend test.
However I have no idea if it is doable.

[Steps to reproduce]

[Expected result]

[Actual result]

[Failure rate]

[Additional information]
CPU: Intel(R) Core(TM) i7-8850H CPU @ 2.60GHz (12x)
kernel-version: 4.18.0-21-generic
system-product-name: Precision 5530
system-manufacturer: Dell Inc.
bios-version: 1.6.0
GPU: 00:02.0 VGA compatible controller: Intel Corporation Device 3e9b

[Jerry Kao (jerry.kao)]

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[Jerry Kao (jerry.kao)]

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[Jerry Kao (jerry.kao)]

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[Jerry Kao (jerry.kao)]

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[Betty Lin (bettyl)]

In this case, because of suspend will fail (hang) when the graphic card switch to Nvidia, so all Nvidia related after suspend jobs were all skipped.
And then, suspend/suspend_advanced occurred when the graphic card was still Nvidia, so all after suspend jobs which depended on it, also all skipped.

I think we may switch the graphic card to another one when the graphic card failed in suspend test to avoid the kind of problem. But, it is a bit complicated.

The workaround I think now is to re-run the jobs which depends on suspend/suspend_advanced after the first run finished.