Kconfig: drop CONFIG_USB_ETHER_DM9601

This is not a valid option. Drop it.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/include/configs/dragonboard410c.h b/include/configs/dragonboard410c.h
index 98b6688..478687a 100644
--- a/include/configs/dragonboard410c.h
+++ b/include/configs/dragonboard410c.h
@@ -39,7 +39,6 @@
 #define CONFIG_USB_HOST_ETHER /* Enable USB Networking */
 
 /* Support all possible USB ethernet dongles */
-#define CONFIG_USB_ETHER_DM9601
 #define CONFIG_USB_ETHER_ASIX
 #define CONFIG_USB_ETHER_ASIX88179
 #define CONFIG_USB_ETHER_MCS7830
diff --git a/scripts/config_whitelist.txt b/scripts/config_whitelist.txt
index c4a19d5..d58b1e3 100644
--- a/scripts/config_whitelist.txt
+++ b/scripts/config_whitelist.txt
@@ -5018,7 +5018,6 @@
 CONFIG_USB_ETHER
 CONFIG_USB_ETHER_ASIX
 CONFIG_USB_ETHER_ASIX88179
-CONFIG_USB_ETHER_DM9601
 CONFIG_USB_ETHER_MCS7830
 CONFIG_USB_ETHER_RNDIS
 CONFIG_USB_ETHER_RTL8152