Implement keymint V1 aidl interfaces, service module, and vts tests.

Bug: b/160968242
Test: atest VtsHalKeyMintV1_0TargetTest

Change-Id: I5f9d642f96e262dd567d88f4d582e621d168dceb
diff --git a/keymint/aidl/Android.bp b/keymint/aidl/Android.bp
new file mode 100644
index 0000000..0dae527
--- /dev/null
+++ b/keymint/aidl/Android.bp
@@ -0,0 +1,21 @@
+aidl_interface {
+    name: "android.hardware.keymint",
+    vendor_available: true,
+    srcs: [
+        "android/hardware/keymint/*.aidl",
+    ],
+    stability: "vintf",
+    backend: {
+        java: {
+            sdk_version: "module_current",
+        },
+        ndk: {
+            vndk: {
+                enabled: true,
+            },
+        },
+        rust: {
+            enabled: true,
+        },
+    },
+}