[ARDIE] fix formats extraction (fixes #3087)
[ARDIE] adjustments suggested by @jaimeMF
tv.nrk.no urls mostly contain capital characters

Updated regexp and one of the test cases to reflect this.
tv.nrksuper.no mostly uses lowercase, so that is still there.
Fix test

Didn't use .lower() as planned, so update test with new ID.
Merge pull request #3090 from Kagee/patch-1

tv.nrk.no urls mostly contain capital characters
Merge pull request #3089 from pulpe/ard_fix

[ARDIE] fix formats extraction (fixes #3087)