qtee_shmbridge: Enable shmbridge on lahaina

Enable shmbridge on lahaina and change parameters
to make it inline with what hyp expects. This
change introduces a support_hyp flag to indicate
if hypervisor support is available for target and
change the parameters accordingly.

Change-Id: If17ece63de719105e0c1de53f5408ec6f462ba13
Signed-off-by: Anmolpreet Kaur <anmolpre@codeaurora.org>