firmware: qcom: tzmem: export shm_bridge create/delete

firmware: qcom: tzmem: export shm_bridge create/delete

Anyone with access to contiguous physical memory should be able to
share memory with QTEE using shm_bridge.

Tested-by: Neil Armstrong <neil.armstrong@linaro.org>
Tested-by: Harshal Dev <quic_hdev@quicinc.com>
Reviewed-by: Kuldeep Singh <quic_kuldsing@quicinc.com>
Signed-off-by: Amirreza Zarrabi <amirreza.zarrabi@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250911-qcom-tee-using-tee-ss-without-mem-obj-v12-1-17f07a942b8d@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>