[L] Change in flashrom[main]: cli_classic: Add rpmc command support

[Peter Marheine (Code Review)]

Attention is currently required from: Anastasia Klimchuk, Matti Finder.

Peter Marheine has posted comments on this change by Matti Finder. ( https://review.coreboot.org/c/flashrom/+/84840?usp=email )

Change subject: cli_classic: Add rpmc command support
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Patch Set 1:

(1 comment)

File meson.build:

https://review.coreboot.org/c/flashrom/+/84840/comment/583f569c_5db29044?usp... :
PS1, Line 179:     add_project_arguments('-DCONFIG_RPMC_ENABLED=1', language : 'c')
rpmc should be added as an option (in `meson_options.txt`), so users can assert they want it enabled and the build will fail if dependencies aren't met.

If you do:

```
option('rpmc', type : 'feature', value : 'auto', description : 'Support for Replay Protected Monotonic Counter (RPMC) commands as specified by JESD260')
```

Then here libcrypto can be required sometimes:

```
libcrypto = dependency('libcrypto', required : get_option('rpmc'), version : '>=3.0.0')

...

if libcrypto.found()
  # Add options for RPMC implementation
  ...
endif
```

..and you don't really need the `message()` anymore since a user can force the build to fail if they want RPMC support but are missing dependencies, instead of manually looking for the message.