[S] Change in flashrom[main]: libflashrom: Allow getting the progress_state from the flashctx

[Anastasia Klimchuk (Code Review)]

Attention is currently required from: Anastasia Klimchuk, Daniel Campello, Edward O'Callaghan, Nico Huber, Richard Hughes.

Anastasia Klimchuk has uploaded a new patch set (#6) to the change originally created by Richard Hughes. ( https://review.coreboot.org/c/flashrom/+/64663?usp=email )

The following approvals got outdated and were removed:
Code-Review+2 by Anastasia Klimchuk, Verified+1 by build bot (Jenkins)

Change subject: libflashrom: Allow getting the progress_state from the flashctx
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libflashrom: Allow getting the progress_state from the flashctx

External users of the libflashrom API cannot peek into the abstract
flashrom_flashctx structure, unlike the local CLI. Provide some API to
get the flashrom_progress struct from a flashrom_flashctx.

This allows fwupd to use the new flashrom_set_progress_callback() API
without using a global variable with the callback data.

Tested with fwupd in https://github.com/fwupd/fwupd/pull/4675

Tested with dummyflasher:
flashrom -p dummy:emulate=W25Q128FV,freq=64mhz -r dump.rom --progress
flashrom -p dummy:emulate=W25Q128FV,freq=64mhz -E --progress

Change-Id: I322bf56ff92f7b4d0ffc92768e9f0cdf7cb82010
Signed-off-by: Richard Hughes 
Signed-off-by: Anastasia Klimchuk 
---
M cli_output.c
M include/libflashrom.h
M libflashrom.c
M libflashrom.map
M tests/chip.c
5 files changed, 20 insertions(+), 2 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/63/64663/6