ASoC: topology: KUnit: Add KUnit tests passing various arguments to snd_soc_tplg_comp...

ASoC: topology: KUnit: Add KUnit tests passing various arguments to snd_soc_tplg_component_load

In order to ensure correct behaviour of topology API, add unit tests
exercising topology functionality.

Start with adding cases for passing various arguments to
snd_soc_tplg_component_load as it is part of exposed topology API.

First test case adds test passing NULL component as argument.
Following one adds test case for passing NULL ops as argument.
Finally add test case passing NULL fw as argument.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Tested-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210120152846.1703655-4-amadeuszx.slawinski@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>