Refine regexes for Das Telefonbuch.

Looks like private and business numbers have a slightly differing
format.

Change-Id: I7eae982fe81cf890686f49b88417e604ba0171a0
Merge "Refine regexes for Das Telefonbuch." into cm-11.0
Merge remote-tracking branch 'cm/cm-11.0' into NEXT