[DO NOT MERGE] Disable CtsProviderTestCases:android.provider.cts.MediaStore_Images_ThumbnailsTest

Disabling in preparation for merge to aosp-master (Q release).

Test: Forrest (atest)
BUG: 139535570
BUG: 139305203
iankaz's forrest run: http://sponge/319029e6-ab11-43d6-a05f-2457e4697fb1
rtenneti's forrest run: http://sponge/3b8ab098-dab5-4846-8a79-250a7321362b
Change-Id: I9266d0ee7880c393745af535a060a4f3c6aa7e98
1 file changed