Change in coreboot[master]: driver/intel/mipi_camera: Add support for _DSC field

[Varshit B Pandya (Code Review)]

Attention is currently required from: Maulik V Vaghela, Tim Wawrzynczak, Subrata Banik, Patrick Rudolph.
Hello build bot (Jenkins), Maulik V Vaghela, Tim Wawrzynczak, Subrata Banik, Patrick Rudolph,

I'd like you to reexamine a change. Please visit

https://review.coreboot.org/c/coreboot/+/58767

to look at the new patch set (#2).

Change subject: driver/intel/mipi_camera: Add support for _DSC field
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driver/intel/mipi_camera: Add support for _DSC field

The _DSC (Device State for Configuration) object evaluates to an integer
may be used to tell Linux the highest allowed D state for a device during
probe. The support for _DSC requires support from the kernel bus type if the
bus driver normally sets the device in D0 state for probe.

The D states and thus also the allowed values for _DSC are listed below.
Number	State	Description
    0	D0	Device fully powered on
    1	D1
    2	D2
    3	D3hot
    4	D3cold	Off

More details can be found here https://lkml.org/lkml/2021/10/25/397

Signed-off-by: Varshit B Pandya 
Change-Id: I5471f144918413a2982f86beaf3dbf7e4e66cc9b
---
M src/drivers/intel/mipi_camera/camera.c
M src/drivers/intel/mipi_camera/chip.h
2 files changed, 6 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/67/58767/2