Fix the currency symbol for fi_FI.ISO8859-1

In the Finnish language, the recommended symbol for euro is the euro sign
where it is available, and the lowercase letter e otherwise.

The use of the ISO currency code EUR is not an abbreviation of the word
euro in the Finnish language, just like FIM is not an abbreviation of
the word markka.

Reference:
https://www.kielikello.fi/-/euro-
Euro
Kielikello 3/1998
Kotimaisten kielten keskus
Institute for the Languages of Finland
[Last retrieved 2020-03-23]

branches: 1.1.4; 1.1.8; 1.1.30; 1.1.32;
Provide UTF-8 variants for all existing locales. The data is derived
from the Unicode Common Locale Data Repository.

Convert non-UTF-8 versions from the UTF-8 version using iconv and some
ad-hoc transliterations using sed.

Use EUR as currency_symbol in ISO8859-1.

Invert the Norwegian handling. no_NO is an alias for nb_NO as the latter
is used e.g. in CLDR.

Provide the Serbian locales in both Cyrilic and Latin script versions.
The alias is choosen based on the character set for the non-UTF-8 case
and Cyrillic is the default for UTF-8.