samples/devsec: Add sample IDE establishment

Exercise common setup and teardown flows for a sample platform TSM
driver that implements the TSM 'connect' and 'disconnect' flows.

This is both a template for platform specific implementations and a test
case for the shared infrastructure.

Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: Samuel Ortiz <sameo@rivosinc.com>
Cc: Alexey Kardashevskiy <aik@amd.com>
Cc: Xu Yilun <yilun.xu@linux.intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>