arm64: defconfig: Enable gpio-fan support

Enable gpio-fan support as this is needed by phyBOARD-Polis-i.MX8M Mini.
Signed-off-by: Teresa Remmet <t.remmet@phytec.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/configs/defconfig

@@ -578,6 +578,7 @@ CONFIG_CHARGER_BQ25890=m
 CONFIG_CHARGER_BQ25980=m
 CONFIG_SENSORS_ARM_SCMI=y
 CONFIG_SENSORS_ARM_SCPI=y
+CONFIG_SENSORS_GPIO_FAN=m
 CONFIG_SENSORS_JC42=m
 CONFIG_SENSORS_LM75=m
 CONFIG_SENSORS_LM90=m