Add ppv-lite86/OWNERS

Test: make
Change-Id: I551cd9cdf5694b74c2fa7e82a3e0424253513a2a
diff --git a/OWNERS b/OWNERS
new file mode 100644
index 0000000..46fc303
--- /dev/null
+++ b/OWNERS
@@ -0,0 +1 @@
+include platform/prebuilts/rust:/OWNERS