Add test for no-i915 configurations

[kv2019i]

SOF driver now supports configurations where the HDMI/DP audio via integrated graphics (i915) is disabled. No separate driver or topology is needed to make this work. However, currently the SOF CI is not testing this configuration and we've had multiple regresssions and bugs that only occur in this configuration. Some examples:

• Fix a runtime pm issue when HDMI codec doesn't work linux#2287
• ASoC: intel/skl/hda - fix probe regression on systems without i915 linux#2270

cc:

• Test i915 hotplug using EDID injection #599
• Ubuntu 22: Wayland aborts without a connected monitor. No hotplug either + Xorg weird crash #964
• lib: wait for fw loaded before starting any test #1033

[mengdonglin]

@plbossart @xiulipan and @RanderWang aligned on how to support this configuration in SOF CI. It seems we cannot support this in sof-test, but in CI test framework.

[plbossart]

@mengdonglin can you elaborate? I don't get at all the explanations.

[xiulipan]

@plbossart I think @mengdonglin would like us to add some fail case in CI. Platform with non-i915 support will be one of this kind of test

[marc-hb]

@kv2019i is this still needed?

[kv2019i]

@marc-hb This is still a valid and popular configuration that we are not explicitly testing in sof-test. Based on data from 2021-22, we've not had any regressions, so that would indicate priority can be lowered.

[fredoh9]

I came here to add this PR, but it is already mentioned.

• lib: wait for fw loaded before starting any test #1033