230222-03 - debian bookworm image for for intel chromebooks with classic mbr boot

• see: https://github.com/hexdump0815/imagebuilder/tree/main/systems/chromebook_x86_mbr
• kernel version used: default distribution kernel
• debian bookworm only for now, ubuntu jammy might follow later - please add a comment here in case ubuntu jammy is required for a certain system: #129
• lots of little fixes and improvements
• in case an image should not properly boot on your system, then please add a comment here: #130
• in case everything is working well, feel free to leave a comment here: #141
• not yet tested, but should work