net/bnxt: support shared session

net/bnxt: support shared session

There are 2 types of sessions - shared and non-shared.  For non-shared
all the allocated resources are owned and managed by a single
session instance. No other applications have access to the
resources owned by the non-shared session.  For a shared session,
resources are shared between 2 applications.

The FW shared session can only be created by one application and
shared by other apps. The host session that creates the FW shared
session is the creator.

Applications can retrieve the reserved resources through a new API
tf_get_session_resc_info.

Each module supports two sessions, one is shared session, the other
is non-shared session.

Signed-off-by: Jay Ding <jay.ding@broadcom.com>
Signed-off-by: Randy Schacher <stuart.schacher@broadcom.com>
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Reviewed-by: Farah Smith <farah.smith@broadcom.com>
Reviewed-by: Ajit Khaparde <ajit.khaparde@broadcom.com>