[S] Change in coreboot[master]: src/device: Add MDIO operation

[Werner Zeh (Code Review)]

Attention is currently required from: Mario Scheithauer.

Werner Zeh has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/69382 )

Change subject: src/device: Add MDIO operation
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Patch Set 1:

(3 comments)

File src/device/mdio.c:

https://review.coreboot.org/c/coreboot/+/69382/comment/7c8e214e_cf99236b 
PS1, Line 11: operations.
Please add a '\n' here for a proper line break.

https://review.coreboot.org/c/coreboot/+/69382/comment/35371aea_984f6ff5 
PS1, Line 11: mdio
Shall we spell it upper case in log messages?

File src/include/device/mdio.h:

https://review.coreboot.org/c/coreboot/+/69382/comment/175683fd_11f58fcb 
PS1, Line 6: struct device;
You should include <device/device.h> here and avoid the forward declaration of 'struct device'
In addition, include <stdint.h> to provide types for uint*_t.