Add METADATA to swt: contains EPL=RECIPROCAL

Bug: 68860345
Bug: 69058154
Bug: 151953481

Test: no code changes
Change-Id: Ie1a8c72faa378d7643b6c1d43928d83c9d740a6b
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..5c3f89c
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,3 @@
+third_party {
+  license_type: RECIPROCAL
+}