LF-7374: firmware: imx: fix coverity issue in seco-mu

Fix the coverity issue: 24243097: Untrusted value as argument,
found in the SECO MU driver.

Added max length condition for io.length, in case of
flag SECO_MU_IO_FLAGS_SHE_V2X enabled

Signed-off-by: Rahul Kumar Yadav <rahulkumar.yadav@nxp.com>
(cherry picked from commit 0185318)

drivers/firmware/imx/seco_mu.c

@@ -680,6 +680,12 @@ static int seco_mu_ioctl_setup_iobuf_handler(struct seco_mu_device_ctx *dev_ctx,
 		shared_mem->pos += round_up(io.length, 8u);
 		io.seco_addr = (u64)shared_mem->dma_addr + pos;
 	} else {
+		if (io.length > MAX_DATA_SIZE_PER_USER) {
+			devctx_err(dev_ctx, "Buffer length exceeded the max limit\n");
+			err = -ENOMEM;
+			goto exit;
+		}
+
 		io.seco_addr = (u64)addr;
 	}