hwmon: (abituguru3) Add AUX4 fan input for Abit IP35 Pro

Abit IP35 Pro has 6 fan connectors (CPU, SYS and AUX1-4), but the
entry for AUX4 was missing from the table.

Signed-off-by: Sergey Vlasov <[e-mail]>
Acked-by: Hans de Goede <[e-mail]>
Signed-off-by: Mark M. Hoffman <[e-mail]>

drivers/hwmon/abituguru3.c

···
 		{ "AUX1 Fan",		33, 2, 60, 1, 0 },
 		{ "AUX2 Fan",		35, 2, 60, 1, 0 },
 		{ "AUX3 Fan",		36, 2, 60, 1, 0 },
+		{ "AUX4 Fan",		37, 2, 60, 1, 0 },
 		{ NULL, 0, 0, 0, 0, 0 } }
 	},
 	{ 0x001B, "unknown", {