Add a script that executes after the boot is completed for Android

1, write the corresponding execution script file ledgpio.sh, put it under the device/rockchip/rk3399 path:
#!/system/bin/sh
Insmod/system/lib/modules/ledgpio.ko

2. Modify the Device.mk file to add the following content:
#ledgpio
Product_copy_files + = \
device/rockchip/rk3399/ledgpio.sh:system/bin/ledgpio.sh

3. Create a service in init.rk30board.rc:
Service ledgpio/system/bin/ledgpio.sh
User root
Group Root
Disabled
OneShot

4. Start the service in init.rk30board.rc:
On property:sys.boot_completed=1
Start Ledgpio

Add a script that executes after the boot is completed for Android