soc/amd/picasso: fix GPE snapshot state

In CB:44488 the cbmem addition was re-filling the object
when it should be memcpy()ing from static object. Correct
that oversight. The side effect from the previous implementation
would be if FSP-M modified the GPE state.

BUG=b:159947207

Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Change-Id: I158a89ae28431896fa9b5789292000fcbf0b066d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44533
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/amd/picasso/romstage.c

@@ -31,7 +31,7 @@ static void add_chipset_state_cbmem(int unused)
 	state = cbmem_add(CBMEM_ID_POWER_STATE, sizeof(*state));
 
 	if (state)
-		acpi_fill_pm_gpe_state(state);
+		memcpy(state, &chipset_state, sizeof(*state));
 }
 
 ROMSTAGE_CBMEM_INIT_HOOK(add_chipset_state_cbmem);