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>

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

scripts/config_whitelist.txt

@@ -5018,7 +5018,6 @@ CONFIG_USB_EHCI_VF
 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