hard-coded u-boot load addresses fragile and breaking low-memory boards about build

[github-actions]

Jira ticket: AR-2058

[Tonymac32]

@armbian/boards-amlogic take a look, I'll start changing stuff without feedback otherwise

[rpardini]

@armbian/boards-amlogic take a look, I'll start changing stuff without feedback otherwise

Would using extlinux "just work?" (eg: are the loadaddrs sane in upstream u-boot?). I've no <4gb meson boards to test.

[Tonymac32]

It literally has to be 1 or 2 boards that have a "problem" with the defaults, so not specifying then "just works".

If device tree overlays work with extlinux then sure why not, but its unnecessary work for what is a problem specific to some board, and for all we know isn't even an issue anymore.

[rpardini]

I meant: if it works with extlinux (where we cant' override built-in uboot loaddr's), then it's safe to remove the hacked loadaddrs from bootscript. "One day" we should be able to template/add/remove stuff per-board from the bootscript to make it easier, since this bootscript is used by the whole family...