ARM: multi_v7_defconfig: Enable TOUCHSCREEN_SUN4I, CPU_THERMAL

This patch enables TOUCHSCREEN_SUN4I and CPU_THERMAL to enable cpufreq
support with passive cpu cooling (thermal throttling) on sunxi by default.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Eduardo Valentin <edubezval@gmail.com>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>