arm64: defconfig: Enable devfreq cooling device

Devfreq cooling device framework is used in Panfrost
to throttle GPU in order to regulate its temperature.

Enable this driver for ARM64 SoC.
Signed-off-by: Clément Péron <peron.clem@gmail.com>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://lore.kernel.org/r/20220906153034.153321-2-peron.clem@gmail.com

arch/arm64/configs/defconfig

@@ -584,6 +584,7 @@ CONFIG_SENSORS_INA2XX=m
 CONFIG_SENSORS_INA3221=m
 CONFIG_THERMAL_GOV_POWER_ALLOCATOR=y
 CONFIG_CPU_THERMAL=y
+CONFIG_DEVFREQ_THERMAL=y
 CONFIG_THERMAL_EMULATION=y
 CONFIG_IMX_SC_THERMAL=m
 CONFIG_IMX8MM_THERMAL=m