accel/ivpu: Add force snoop module parameter

accel/ivpu: Add force snoop module parameter

Add module parameter that enforces snooping for all NPU accesses,
both through MMU PTEs mappings and through TCU page table walk
override register bits for MMU page walks / configuration access.

Signed-off-by: Wachowski, Karol <karol.wachowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240513120431.3187212-10-jacek.lawrynowicz@linux.intel.com