intel_debug: add info for Intel firmware and tplg filenames

[kv2019i]

Add tables documenting the firmare and topology filenames and their locations, as expected by Linux SOF driver.

Related to ongoing discussions in:

• https://github.com/thesofproject/linux/issues/4590
• https://github.com/thesofproject/sof/pull/8210

[kv2019i]

Thanks for reviews. @deb-intel and @marc-hb I merged your wording suggestions to a new version.