[rilmodem] add missing brace characters

Signed-off-by: Jarko Poutiainen <Jarko.Poutiainen@oss.tieto.com>
Merge pull request #154 from leinomii/cb_next

[rilmodem] Add Call Barring support
Merge pull request #152 from jpoutiai/next

[rilmodem] add missing brace characters
[rilmodem] Fix for Call Barring commit

Signed-off-by: Miia Leinonen <miia.leinonen@oss.tieto.com>
Merge branch 'next' of https://github.com/nemomobile-packages/ofono into cb_next