rpi-eeprom-config is included in RPi4 and RPi5 images (not in RPi2 though as RPi2/3 don't have bootloader eeproms)
Code
LibreELEC (official): 11.95.1 (RPi5.aarch64)
xbmc:~ # which rpi-eeprom-config
/usr/bin/rpi-eeprom-config
xbmc:~ # rpi-eeprom-config
[all]
BOOT_UART=1
POWER_OFF_ON_HALT=1
BOOT_ORDER=0xf21
so long,
Hias