Pyra-DT: made most leds disabled at boot (except power button blinking green)

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
GTA04 test: added ledtest script that blinks all leds defined in /sys/class/leds

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
hwmon: added ti,ina231 since they are claimed to have the same programming model as ina230
see: http://e2e.ti.com/support/amplifiers/current-shunt-monitors/f/931/t/351729.aspx

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
GTA04 defconfig: configure ina231 driver

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Pyra DT: configured the INA231 used as modem power monitor

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Revert "hwmon: added ti,ina231 since they are claimed to have the same programming model as ina230"

This reverts commit e0c7bc14b02cf0ce54ea7cf009c1c9e74eba537f because it commited different files as well
hwmon: re-added only ina231 fixes

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
power: added bq249x charger driver found in the net

some locations:
https://crewrktablets.arctablet.com:8081/opendev/kernel_rockchip/tree/rockchip-3.10-rk3188
https://github.com/linux-rockchip/kernel_rockchip/blob/wip/lsk-android-14.04-radxa-rock/drivers/power/bq24296_charger.c
https://github.com/linux-rockchip/kernel_rockchip/blob/wip/lsk-android-14.04-radxa-rock/include/linux/power/bq24296_charger.h

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
power/bq249x: made it compiling

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
GTA04 defconfig: add bq249x module

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
Pyra DT: preliminary config for bq2429x charger

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>
bq2429x: coding style (formatting) improved a little

Signed-off-by: H. Nikolaus Schaller <hns@goldelico.com>