localedata: Fix unicode-gen check target.

After the transition to generating a distinct file for Unicode ctype
information e.g. i18n_ctype, the check target was left with the wrong
target name. This patch fixes the check target and regenerates the
files with more information than previously used, filling in the the
LC_IDENTIFICATION data.

Tested on x86_64 by regenerating from Unicode source files, and
running checks. Tested by subsequently rebuilding all locales.
No regressions in testsuite.

Signed-off-by: Carlos O'Donell <carlos@redhat.com>
Reported-by: Rafal Luzynski <digitalfreak@lingonborough.com>