[S] Change in coreboot[master]: vc/amd/*,soc/amd/*: Add SVC call to get HSP Secure State

[Martin Roth (Code Review)]

Attention is currently required from: Jason Glenesk, Raul Rangel, Martin L Roth, Matt DeVillier, Name of user not set #1004763, Fred Reitberger, Karthik Ramasubramanian, Felix Held.

Martin Roth has posted comments on this change. ( https://review.coreboot.org/c/coreboot/+/71207 )

Change subject: vc/amd/*,soc/amd/*: Add SVC call to get HSP Secure State
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Patch Set 6:

(1 comment)

File src/vendorcode/amd/fsp/cezanne/include/bl_uapp/bl_syscall_public.h:

https://review.coreboot.org/c/coreboot/+/71207/comment/9fb1c5ac_c328615d 
PS1, Line 362: uint32_t svc_get_hsp_secure_state(uint32_t *hsp_secure_state);
> I agree with martin. We should have a `common.h` that declares methods like this. […]

I'm happy to do that in a follow-on cleanup patch to reorganize.

I'm not sure that we can use weak implementations though, at least not for everything.  If you look at the older functions, they required different parameters.  We might be able to rewrite them though.

I'll take a look.