Change in coreboot[master]: cpu/x86/smm,lib/cbmem_console: Enable CBMEMC when using DEBUG_SMI

[Raul Rangel (Code Review)]

Attention is currently required from: Arthur Heymans, Nico Huber, Martin Roth, Tim Wawrzynczak, Julius Werner, Rob Barnes, Karthik Ramasubramanian.
Raul Rangel has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/62355 )

Change subject: cpu/x86/smm,lib/cbmem_console: Enable CBMEMC when using DEBUG_SMI
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Patch Set 3:

(3 comments)

Commit Message:

https://review.coreboot.org/c/coreboot/+/62355/comment/f6e48472_3828a078 
PS2, Line 24: and call that from smm_module_handler.
> Maybe a nicer way would be to define an smm_get_cbmemc_buffer(void *buffer_out, size_t *size_out) fu […]

Done

File src/cpu/x86/smm/smm_module_handler.c:

https://review.coreboot.org/c/coreboot/+/62355/comment/b732157c_0d1a931f 
PS2, Line 17: size_t cbmemc_size;
> Since these are global symbols, please namespace them a bit better (e.g. […]

Ack

File src/lib/cbmem_console.c:

https://review.coreboot.org/c/coreboot/+/62355/comment/7f208a28_253738d7 
PS2, Line 90: 		extern size_t cbmemc_size;
> These should probably go in some SMM-specific header and then be included here.

Ack