mb/google/zork: Add signed verstage binaries & signature token

This adds signed PSP verstage binaries and AMD's signature token so that
the PSP can verify the signature.

BUG=b:165014175
TEST=Build and verify the signature token is present.
BRANCH=Zork

Signed-off-by: Martin Roth <martinroth@chromium.org>
Change-Id: Ie459ad47a77d31102dee708b4deb17bdea929f4a
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/blobs/+/2402249
Reviewed-by: Aaron Durbin <adurbin@google.com>
Tested-by: Martin Roth <martinroth@google.com>
Commit-Queue: Martin Roth <martinroth@google.com>
diff --git a/mainboard/google/zork/PCO_psp_verstagebl_fw_signing.stkn b/mainboard/google/zork/PCO_psp_verstagebl_fw_signing.stkn
new file mode 100644
index 0000000..15596f2
--- /dev/null
+++ b/mainboard/google/zork/PCO_psp_verstagebl_fw_signing.stkn
Binary files differ
diff --git a/mainboard/google/zork/berknip_psp_verstage.bin.signed b/mainboard/google/zork/berknip_psp_verstage.bin.signed
new file mode 100644
index 0000000..a74429d
--- /dev/null
+++ b/mainboard/google/zork/berknip_psp_verstage.bin.signed
Binary files differ
diff --git a/mainboard/google/zork/dalboz_psp_verstage.bin.signed b/mainboard/google/zork/dalboz_psp_verstage.bin.signed
new file mode 100644
index 0000000..8eab12b
--- /dev/null
+++ b/mainboard/google/zork/dalboz_psp_verstage.bin.signed
Binary files differ
diff --git a/mainboard/google/zork/dirinboz_psp_verstage.bin.signed b/mainboard/google/zork/dirinboz_psp_verstage.bin.signed
new file mode 100644
index 0000000..d9f261e
--- /dev/null
+++ b/mainboard/google/zork/dirinboz_psp_verstage.bin.signed
Binary files differ
diff --git a/mainboard/google/zork/ezkinil_psp_verstage.bin.signed b/mainboard/google/zork/ezkinil_psp_verstage.bin.signed
new file mode 100644
index 0000000..856fe5e
--- /dev/null
+++ b/mainboard/google/zork/ezkinil_psp_verstage.bin.signed
Binary files differ
diff --git a/mainboard/google/zork/morphius_psp_verstage.bin.signed b/mainboard/google/zork/morphius_psp_verstage.bin.signed
new file mode 100644
index 0000000..5771fa8
--- /dev/null
+++ b/mainboard/google/zork/morphius_psp_verstage.bin.signed
Binary files differ
diff --git a/mainboard/google/zork/trembyle_psp_verstage.bin.signed b/mainboard/google/zork/trembyle_psp_verstage.bin.signed
new file mode 100644
index 0000000..4caf7fd
--- /dev/null
+++ b/mainboard/google/zork/trembyle_psp_verstage.bin.signed
Binary files differ
diff --git a/mainboard/google/zork/vilboz_psp_verstage.bin.signed b/mainboard/google/zork/vilboz_psp_verstage.bin.signed
new file mode 100644
index 0000000..66d9857
--- /dev/null
+++ b/mainboard/google/zork/vilboz_psp_verstage.bin.signed
Binary files differ
diff --git a/mainboard/google/zork/woomax_psp_verstage.bin.signed b/mainboard/google/zork/woomax_psp_verstage.bin.signed
new file mode 100644
index 0000000..9fc7665
--- /dev/null
+++ b/mainboard/google/zork/woomax_psp_verstage.bin.signed
Binary files differ