Create IRadio 1.6 folder, empty files and VTS framework

Bug: 158315614
Test: build
Change-Id: I5d7f7205933ea1b0e4bd70fa6ae006dacb67954f
diff --git a/radio/1.6/Android.bp b/radio/1.6/Android.bp
new file mode 100644
index 0000000..b363f57
--- /dev/null
+++ b/radio/1.6/Android.bp
@@ -0,0 +1,22 @@
+// This file is autogenerated by hidl-gen -Landroidbp.
+
+hidl_interface {
+    name: "android.hardware.radio@1.6",
+    root: "android.hardware",
+    srcs: [
+        "types.hal",
+        "IRadio.hal",
+        "IRadioIndication.hal",
+        "IRadioResponse.hal",
+    ],
+    interfaces: [
+        "android.hardware.radio@1.0",
+        "android.hardware.radio@1.1",
+        "android.hardware.radio@1.2",
+        "android.hardware.radio@1.3",
+        "android.hardware.radio@1.4",
+        "android.hardware.radio@1.5",
+        "android.hidl.base@1.0",
+    ],
+    gen_java: true,
+}