securemsm-kernel: smcinvoke: Add explicit cache flush during callback req from TZ

During Callback request from TZ, smcinvoke in and out buffers need
explicit cache operation with legacy smcinvoke.

Change-Id: I3eacd69901c1ce117017b2d59a28dfab83b5f3f9

smcinvoke/smcinvoke.c

@@ -1350,8 +1350,14 @@ static int invoke_cmd_handler(int cmd, phys_addr_t in_paddr, size_t in_buf_len,
 		break;
 
 	case SMCINVOKE_CB_RSP_CMD:
+		if (legacy_smc_call)
+			qtee_shmbridge_inv_shm_buf(out_shm);
 		ret = qcom_scm_invoke_callback_response(virt_to_phys(out_buf), out_buf_len,
 				result, response_type, data);
+		if (legacy_smc_call) {
+			qtee_shmbridge_inv_shm_buf(in_shm);
+			qtee_shmbridge_inv_shm_buf(out_shm);
+		}
 		break;
 
 	default: