tests/amdgpu: add device handle as input param for exec_cs_helper and write_linear_helper (v4)

This patch is to add add device handle as input param for exec_cs_helper
and write_linear_helper.

Because they are needed in security tests.

v2: fix typo that basic tests should be un-secure.
v3: refine the function implementation.
v4: remove amdgpu_cs_ctx_create3 calling.

Acked-by: Huang Rui <ray.huang@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>