Add derive_microdroid_vendor_dice_node binary

This patch introduces a skeleton of the binary that will be executed in
the first_stage_init to derive a new dice chain with node that
corresponds to the microdroid vendor partition.

Actual implementation will be done in the follow-up patch.

Bug: 287593065
Test: check that binary is executed
Change-Id: Iba68bb52de27fcdf426410d36aca6a29bcc59d7c
diff --git a/microdroid/Android.bp b/microdroid/Android.bp
index eebe153..e19a343 100644
--- a/microdroid/Android.bp
+++ b/microdroid/Android.bp
@@ -157,6 +157,9 @@
     // Below are dependencies that are conditionally enabled depending on value of build flags.
     soong_config_variables: {
         release_avf_enable_dice_changes: {
+            deps: [
+                "derive_microdroid_vendor_dice_node",
+            ],
             dirs: [
                 "microdroid_resources",
             ],