qcacmn: Adjust min zero compression to 1

The IPv6 address format allows compression of _one_ or more zero hextets
using "::". However, the current implementation accepts _zero_ or more
zero hextets as valid. Adjust the minimum required hextets for a zero
compression to 1 from 0.

Change-Id: Ibdf406b04bbdc44d4a28fafa6179c104285c915c
CRs-Fixed: 2362739
2 files changed