Incorrect ISO:false designations

[p2made]

There are a few flags which are listed as not being ISO when they actually are. Those flags are...

Code	Name	Wikipedia
es-ct	Catalonia	https://en.wikipedia.org/wiki/Catalonia
es-ga	Galicia	https://en.wikipedia.org/wiki/Galicia_(Spain)
es-pv	Basque Country	https://en.wikipedia.org/wiki/Basque_Country_(autonomous_community)
gb-eng	England	https://en.wikipedia.org/wiki/England
gb-sct	Scotland	https://en.wikipedia.org/wiki/Scotland
gb-wls	Wales	https://en.wikipedia.org/wiki/Wales
sh-ac	Ascension Island	https://en.wikipedia.org/wiki/Ascension_Island
sh-hl	Saint Helena	https://en.wikipedia.org/wiki/Saint_Helena
sh-ta	Tristan da Cunha	https://en.wikipedia.org/wiki/Tristan_da_Cunha

All of them are first level sub-divisions of the countries they belong to. Most, if not all (& all in my experience), such first level sub-divisions have ISO designations taking the form, country ISO code, a hyphen, 2 or 3 alphanumeric characters.

In the interest of quality curation, I believe that these flags, & any future ones like them, should be listed as being ISO.