[IBAL] Change CEP DREP API

[IBAL] Change CEP DREP API

The al_cep_drep API currently takes the ib_cm_drep_t structure.  This structure is passed in the IOCTL.  It has en embedded pointer that isn't used since the private data is copied into the IOCTL structure.

This patch removes the ib_cm_drep_t structure from the IOCTL structure, and passes the private data buffer and length in explicitly.

Signed-off-by: Fab Tillier <ftillier@microsoft.com>
git-svn-id: svn://openib.tc.cornell.edu/gen1@1374 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86