mb/google/brox/var/greenbayupoc: Add vbt from brox

Copy the data.vbt from brox to greenbayupoc

BUG=b:326413034
TEST=emerge-brox coreboot chromeos-bootimage, flash and boot on DUT

Change-Id: I1e8101519ab2ecbb4654c20485fbe83c90656e4d
Signed-off-by: Eren Peng <peng.eren@inventec.corp-partner.google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/82108
Reviewed-by: Derek Huang <derekhuang@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/mainboard/google/brox/variants/greenbayupoc/data.vbt b/src/mainboard/google/brox/variants/greenbayupoc/data.vbt
new file mode 100644
index 0000000..716d09f
--- /dev/null
+++ b/src/mainboard/google/brox/variants/greenbayupoc/data.vbt
Binary files differ