[L] Change in coreboot[master]: lib/coreboot_table: Simplify API to set up lb_serial

[Arthur Heymans (Code Review)]

Attention is currently required from: Hung-Te Lin, Julius Werner, ron minnich.

Arthur Heymans has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/68768 )

Change subject: lib/coreboot_table: Simplify API to set up lb_serial
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Patch Set 12:

(1 comment)

File src/lib/coreboot_table.c:

https://review.coreboot.org/c/coreboot/+/68768/comment/d2e9f5e5_7143158c 
PS11, Line 498: lb_add_serial
> if you look at all lb_XXX calls in this function, they don't have 'add' (except the lb_add_console and lb_add_acpi_rsdp). Maybe lb_serial is a better name? But I'm fine either way.

That's outside the scope here. It's a local function anyway so it does not matter so much.