ARM: sunxi: Enable CONFIG_SUN8I_THERMAL

Many sunxi based board needs CONFIG_SUN8I_THERMAL for thermal support.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>

arch/arm/configs/sunxi_defconfig

@@ -85,6 +85,7 @@ CONFIG_BATTERY_AXP20X=y
 CONFIG_AXP20X_POWER=y
 CONFIG_THERMAL=y
 CONFIG_CPU_THERMAL=y
+CONFIG_SUN8I_THERMAL=y
 CONFIG_WATCHDOG=y
 CONFIG_SUNXI_WATCHDOG=y
 CONFIG_MFD_AC100=y