[PATCH v6 7/7] bootm: Tidy up use of autostart env var

[Wolfgang Denk]

Dear Simon Glass,

In message <20211014182257.468649-6-sjg at chromium.org> you wrote:
> This has different semantics in different places. Go with the bootm method
> and put it in a common function so that the behaviour is consistent in
> U-Boot. Update the docs.
>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> Suggested-by: Wolfgang Denk <wd at denx.de>

It should be noted that this commit changes the behaviour of U-Boot
for "autostart" users, thus it has the potential of breaking
existent systems.

The problematic cases are in do_bootelf() [cmd/elf.c] and
do_bootm_standalone() [common/bootm_os.c]; the 3rd place where this
is used - bootm_maybe_autostart() [cmd/bootm.c] - does not change.

Or am I missing something?

Best regards,

Wolfgang Denk

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