net/bnxt: change RM database type

net/bnxt: change RM database type

RM databases are statically defined in each module. New static
database needs to be defined in the code when multiple sessions
are added. Add dynamic alloc database and associate it to each
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>