pt-BR support for hplip install script

[brian_p]

An enhancement request from a Deian user. Please see

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=736200

An extract from the bug report:

> EXPECT_WORD_LIST = [
> pexpect.EOF, # 0
> pexpect.TIMEOUT, # 1
> "Continue?", # 2 (for zypper)
> "passwor[dt]", # en/de/it/ru
> "kennwort", # de?
> "password for", # en
> "mot de passe", # fr
> "contraseña", # es
> "palavra passe", # pt
> "口令", # zh
> "wachtwoord", # nl
> "heslo", # czech
> "密码",
> "Lösenord", #sv
> "Senha" #pt-BR ---> here is the string to add
> ]

Cheers,

Brian.