hi846: add and enable broken 816x612 and 3264x2448 full-sensor modes

to hack on using the debug interface:

	#!/bin/bash
	path="/sys/kernel/debug/hi846/"

	echo 1 > "$path/clear"

	# these register values are overwriting the default settings when
	# starting to stream
	#     REG                                VALUE
	echo "0x0902" > "$path/address" && echo "0x4319" > "$path/add_value"
	# you can put a reg/value table here
2 jobs for hi846_816x612 in 81 minutes and 9 seconds
latest
Status Job ID Name Coverage
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passed #366963
librem5
build:aarch64

00:28:50

passed #366964
librem5:arm64
build:deb

01:09:42