soc/amd/picasso: Use C00n for CPU ACPI string

Match the path generated by AGESA.  Add more PPKG packages.

TEST=Verify that "\_PR.C00n" AE_NOT_FOUND errors go away
BUG=b:145013057

Change-Id: I82587648d37c0be885991f2e5741d9f874d6a2eb
Signed-off-by: Marshall Dawson <marshall.dawson@amd.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/1937788
Reviewed-by: Martin Roth <martinroth@chromium.org>
Commit-Queue: Martin Roth <martinroth@chromium.org>
Tested-by: Martin Roth <martinroth@chromium.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41635
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/soc/amd/picasso/Kconfig b/src/soc/amd/picasso/Kconfig
index ce1f074..ddbc6c31 100644
--- a/src/soc/amd/picasso/Kconfig
+++ b/src/soc/amd/picasso/Kconfig
@@ -176,7 +176,7 @@
 
 config ACPI_CPU_STRING
 	string
-	default "\\_PR.P%03d"
+	default "\\_PR.C%03d"
 
 config ACPI_BERT
 	bool "Build ACPI BERT Table"