Change in coreboot[master]: driver/i2c: Add sx9360 driver

[Gwendal Grignou (Code Review)]

Attention is currently required from: Paul Menzel, Tim Wawrzynczak.
Gwendal Grignou has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/59608 )

Change subject: driver/i2c: Add sx9360 driver
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Patch Set 2:

(2 comments)

File src/drivers/i2c/sx9360/sx9360.c:

PS2:
> This looks very similar to `src/drivers/i2c/sx9324/sx9324.c`. […]

It is actually closer to sx9310 current driver. I am working to make sx9324 look like sx9310 as well.
I can combine them into one, but we are not saving much code.
chip.h will become:

struct drivers_i2c_sx93xx_config {
  ## common
  const char *desc;
  ...
  struct acpi_irq irq;

## different
  union {
    struct {
      ## 5 params
    } sx9310
    struct {
      ## 4 params
    } sx9324
    struct {
      ## 3 params
    } sx9360
  } prop
}

Some parameters are found in different Semtech sensors, but they are used slightly differently. IMHO, the removed common code will not offset the added complexity.

https://review.coreboot.org/c/coreboot/+/59608/comment/a715a341_824756e6 
PS2, Line 15: REGISTER
> This looks unused, and not particularly worth it for 3 parameters? […]

It is unused, I should have removed it when copied the code from sx9324.