net: asix: Move declaration of ax88172a_info to shared header

Ensure that the definition of ax88172a_info matches the declaration seen
by users and silence sparse warnings about symbols without declarations
in the global namespace by moving the declaration into the shared header
asix.h.
Signed-off-by: NMark Brown <broonie@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

drivers/net/usb/asix.h

@@ -178,6 +178,8 @@ struct asix_common_private {
 	struct asix_rx_fixup_info rx_fixup_info;
 };
 
+extern const struct driver_info ax88172a_info;
+
 /* ASIX specific flags */
 #define FLAG_EEPROM_MAC		(1UL << 0)  /* init device MAC from eeprom */
 

drivers/net/usb/asix_devices.c

@@ -946,8 +946,6 @@ static const struct driver_info hg20f9_info = {
 	.data = FLAG_EEPROM_MAC,
 };
 
-extern const struct driver_info ax88172a_info;
-
 static const struct usb_device_id	products [] = {
 {
 	// Linksys USB200M