Change in coreboot[master]: drivers/intel/mipi_camera: Increase gpio_num size

[Tim Wawrzynczak (Code Review)]

Attention is currently required from: Varshit B Pandya, Furquan Shaikh, Maulik V Vaghela, Sugnan Prabhu S, Rizwan Qureshi, Patrick Rudolph.
Tim Wawrzynczak has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/55538 )

Change subject: drivers/intel/mipi_camera: Increase gpio_num size
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Patch Set 4:

(1 comment)

File src/drivers/intel/mipi_camera/chip.h:

https://review.coreboot.org/c/coreboot/+/55538/comment/934f3e3c_fb3c40c8 
PS4, Line 117: __packed
> I know this wasn't added here, but why are all these structs marked as __packed?

Not sure... I believe the `intel_ssdb` does need to be __packed, but the others don't much sense to me.

Sugnan, do you know why?