libethdrivers: imx6 fix log message

In imx6.c the ZF_LOGI message for promiscuous mode uses wrong variable.

Signed-off-by: Thomas Wittal <thomas.wittal@hensoldt-cyber.de>

libethdrivers/src/plat/imx6/imx6.c

diff --git a/libethdrivers/src/plat/imx6/imx6.c b/libethdrivers/src/plat/imx6/imx6.c
index 7c77b32..9cd257f 100644
--- a/libethdrivers/src/plat/imx6/imx6.c
+++ b/libethdrivers/src/plat/imx6/imx6.c
@@ -726,7 +726,7 @@
      */
     bool do_promiscuous_mode = nic_config &&
                                (nic_config->flags & NIC_CONFIG_PROMISCUOUS_MODE);
-    ZF_LOGI("config: promiscuous mode %s", do_strip_crc ? "ON" : "OFF");
+    ZF_LOGI("config: promiscuous mode %s", do_promiscuous_mode ? "ON" : "OFF");
     if (do_promiscuous_mode) {
         enet_prom_enable(dev->enet);
     } else {