Add scripts for generating raven/oriole vendor blobs

TEST:generated blobs from artifacts. Flashed device

BUG: 182332166
Change-Id: Id30463bdcad7a8e9818bc1db187c4e6f945d4d49
diff --git a/self-extractors_oriole/PROLOGUE b/self-extractors_oriole/PROLOGUE
new file mode 100644
index 0000000..c856ef1
--- /dev/null
+++ b/self-extractors_oriole/PROLOGUE
@@ -0,0 +1,2 @@
+#!/bin/bash
+#