PS3: gelic: Add support for separate cipher selection

From version 2.20 of the PS3 system software, the hypervisor allows
the guest OSes to specify separate cipher for group and pairwise.

Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp>
Signed-off-by: John W. Linville <linville@tuxdriver.com>