Add support Lenovo snowman 1080p camera (#13)

* add-lenovo-snowman-1080p

* Correct flavor from lite to ultimate

* Delete devices/hi3518ev200_ultimate_lenovo-snowman-1080p/general/overlay/etc/builder.msg

* Delete devices/hi3518ev200_ultimate_lenovo-snowman-1080p/general/overlay/etc/wireless/usb

* deleted:    bin/load_hisilicon moved changes to firmware

* Removal from the list deletion of staging modules because in not build anymore

* Delete undeeded option and set wlandev env variable

* Delete changes, work at default 30fps

* Add mux GPIO 37 for audio speaker

* Add lite flavor lenovo snowman 1080p

* Cosmetic changes

* Removal preset sensor

---------

Co-authored-by: andrew <andrew@gradient.ru>
Co-authored-by: Signor Pellegrino <68112357+FlyRouter@users.noreply.github.com>

devices/hi3518ev200_ultimate_lenovo-snowman-1080p/general/overlay/usr/sbin/resetd

@@ -0,0 +1,32 @@
+#!/bin/sh
+
+# Set Reset switch GPIO
+GPIO=3
+
+[ -z $GPIO ] && echo "GPIO pin for resetd is not set" && echo "[resetd] GPIO undefined in /usr/sbin/resetd" > /dev/kmsg && exit
+
+# Counter for button press until reset
+count=0
+
+# prepare the pin
+if [ ! -d /sys/class/gpio/gpio${GPIO} ]; then
+	echo "${GPIO}" > /sys/class/gpio/export
+	echo "in" > /sys/class/gpio/gpio"${GPIO}"/direction
+fi
+
+# continuously monitor current value of reset switch
+while [ true ]; do
+	if [ "$(cat /sys/class/gpio/gpio"${GPIO}"/value)" -eq 1 ]; then
+		count=0
+	else
+		count=$((count+1))
+
+		# 20 counts =~ 5 seconds @ 0.25 sleep intervals
+		if [ $count -eq 20 ]; then
+			echo 'RESETTING FIRMWARE'
+			firstboot
+		fi
+	fi
+	# This interval uses 1% CPU. Less sleep = more CPU
+	sleep 0.25
+done