[coreboot-gerrit] Change in coreboot[master]: soc/intel/common: Add `struct gpio_pad_table` and helpers

[Michael Niewöhner (Code Review)]

Attention is currently required from: Furquan Shaikh, Angel Pons, Subrata Banik, Patrick Rudolph.
Michael Niewöhner has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/50176 )

Change subject: soc/intel/common: Add `struct gpio_pad_table` and helpers
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Patch Set 1:

(1 comment)

Patchset:

PS1: 
I just had another idea: what about this?

#define GPIO_PAD_ARRAY(name, table) const struct gpio_pad_table name = { \
  .padcfg = table,			\
  .length = ARRAY_SIZE(table),		\
  };

`const struct gpio_pad_table variant_gpio_table = GPIO_PAD_ARRAY(gpio_table);` would become:
`GPIO_PAD_ARRAY(variant_gpio_table, gpio_table)` just like the bootstate macros.