Change in coreboot[master]: mb/google/brya/{}: Add SBU orientation property for Type C Mux

[Deepti Deshatty (Code Review)]

Attention is currently required from: Subrata Banik, Maulik V Vaghela, Paul Menzel, Tim Wawrzynczak, Prashant Malani, Meera Ravindranath, Nick Vaccaro, Rajat Jain.
Deepti Deshatty has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/61622 )

Change subject: mb/google/brya/{}: Add SBU orientation property for Type C Mux
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Patch Set 6: Code-Review+1

(2 comments)

File src/mainboard/google/brya/variants/felwinter/overridetree.cb:

https://review.coreboot.org/c/coreboot/+/61622/comment/5a0a7961_b3d385d2 
PS6, Line 328: # SBU is fixed, HSL follows CC
             : 						register "sbu_orientation" = "TYPEC_ORIENTATION_NORMAL"
> @Deepti, can you pls comment here?

If these properties are not exposed in ACPI, then kernel driver fallback in CC orientation to get this values.
Hence change is needed only for the ports with retimer.

File src/mainboard/google/brya/variants/taeko/overridetree.cb:

https://review.coreboot.org/c/coreboot/+/61622/comment/af4eb67f_6fad558f 
PS6, Line 450: # SBU is fixed, HSL follows CC
             : 						register "sbu_orientation" = "TYPEC_ORIENTATION_NORM
> @Deepti, pls comment here.

yes the port0 is a direct port.