[M] Change in flashrom[main]: cli: Remove array of flash contexts, use one active context instead

[Anastasia Klimchuk (Code Review)]

Attention is currently required from: Anastasia Klimchuk, Peter Marheine.

Hello Peter Marheine, build bot (Jenkins),

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/flashrom/+/87533?usp=email

to look at the new patch set (#2).

The following approvals got outdated and were removed: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

The change is no longer submittable: Code-Review and Verified are unsatisfied now.

Change subject: cli: Remove array of flash contexts, use one active context instead
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cli: Remove array of flash contexts, use one active context instead

The only purpose of array of 8 flash contexts was to facilitate
probing of multiple chips. Probing is now done inside libflashrom,
and cli as a client of libflashrom only need to have one active
context.

In addition to array of 8, cli also had one more flash context,
`fill_flash` which is also now replaced by the same, one active
context.

Another detail is that array of 8 was effectively a limit of how
many mathing chips could be found. While 8 seemed a lot at the time
of initial implementation, at the moment we have an example of
6 matches already.
(see `./flashrom -p dummy:emulate=MX25L6436`)

Change-Id: Ia4284ae7aaa43fe59f0d3f57314ebc5cc93d2d9b
Signed-off-by: Anastasia Klimchuk 
---
M cli_classic.c
1 file changed, 37 insertions(+), 43 deletions(-)

git pull ssh://review.coreboot.org:29418/flashrom refs/changes/33/87533/2