libcupsfilters: In ieee1284NormalizeMakeAndModel() do not remove extra after ()

libcupsfilters: In ieee1284NormalizeMakeAndModel() do not remove extra after ()

If a PPD's NickName has extra info in parentheses after the model name
we have thrown away any further text after the parentheses. As
PPD-retro-fitting Printer Applications add the PPD's language (for
example "(en)") to the end of the NickName and then call
ieee1284NormalizeMakeAndModel() to generate the unique driver name,
this language info extension gets thrown away and the unique driver
name identical for all language versions of the same printer's PPD,
making the entries clobbering each other leaving only the first in the
alphabet, which is often German ("de") and rarely English.

Now we do not remove any part of the input string's extra info to
remedy this problem.