Brazilian Portuguese translation of winecfg

[Gustavo]

Hello,

I've updated the translation of winecfg in Brazilian Portuguese.

Making comparisons, I also noted that the "Windows Version" (Versão do
Windows) drop-down menu disappeared and the Browse...  (Localização:) text
in the Drives was cut to half when you execute wine with LANG="pt_PT.UTF-8"
(the Portuguese from Portugal). I've managed to fix that as well.

So I sent two separate patches: one with the Brazilian translation and
another with the Portuguese fixes. Let me know if I did anything wrong.

Gustavo Henrique Milaré