Fingerprint: HIDL: add legacy (2.1) interface definition.

Test: make for bullhead_treble

Change-Id: Ibc720d8cfdd6a3a39904787885ba4f2e398979b3
diff --git a/biometrics/fingerprint/2.1/Android.bp b/biometrics/fingerprint/2.1/Android.bp
new file mode 100644
index 0000000..77b41b8
--- /dev/null
+++ b/biometrics/fingerprint/2.1/Android.bp
@@ -0,0 +1,54 @@
+// This file is autogenerated by hidl-gen. Do not edit manually.
+
+genrule {
+    name: "android.hardware.biometrics.fingerprint@2.1_genc++",
+    tool: "hidl-gen",
+    cmd: "$tool -o $genDir -Lc++ -randroid.hardware:hardware/interfaces android.hardware.biometrics.fingerprint@2.1",
+    srcs: [
+        "types.hal",
+        "IBiometricsFingerprint.hal",
+        "IBiometricsFingerprintClientCallback.hal",
+    ],
+    out: [
+        "android/hardware/biometrics/fingerprint/2.1/types.cpp",
+        "android/hardware/biometrics/fingerprint/2.1/BiometricsFingerprintAll.cpp",
+        "android/hardware/biometrics/fingerprint/2.1/BiometricsFingerprintClientCallbackAll.cpp",
+    ],
+}
+
+genrule {
+    name: "android.hardware.biometrics.fingerprint@2.1_genc++_headers",
+    tool: "hidl-gen",
+    cmd: "$tool -o $genDir -Lc++ -randroid.hardware:hardware/interfaces android.hardware.biometrics.fingerprint@2.1",
+    srcs: [
+        "types.hal",
+        "IBiometricsFingerprint.hal",
+        "IBiometricsFingerprintClientCallback.hal",
+    ],
+    out: [
+        "android/hardware/biometrics/fingerprint/2.1/types.h",
+        "android/hardware/biometrics/fingerprint/2.1/IBiometricsFingerprint.h",
+        "android/hardware/biometrics/fingerprint/2.1/IHwBiometricsFingerprint.h",
+        "android/hardware/biometrics/fingerprint/2.1/BnBiometricsFingerprint.h",
+        "android/hardware/biometrics/fingerprint/2.1/BpBiometricsFingerprint.h",
+        "android/hardware/biometrics/fingerprint/2.1/BsBiometricsFingerprint.h",
+        "android/hardware/biometrics/fingerprint/2.1/IBiometricsFingerprintClientCallback.h",
+        "android/hardware/biometrics/fingerprint/2.1/IHwBiometricsFingerprintClientCallback.h",
+        "android/hardware/biometrics/fingerprint/2.1/BnBiometricsFingerprintClientCallback.h",
+        "android/hardware/biometrics/fingerprint/2.1/BpBiometricsFingerprintClientCallback.h",
+        "android/hardware/biometrics/fingerprint/2.1/BsBiometricsFingerprintClientCallback.h",
+    ],
+}
+
+cc_library_shared {
+    name: "android.hardware.biometrics.fingerprint@2.1",
+    generated_sources: ["android.hardware.biometrics.fingerprint@2.1_genc++"],
+    generated_headers: ["android.hardware.biometrics.fingerprint@2.1_genc++_headers"],
+    export_generated_headers: ["android.hardware.biometrics.fingerprint@2.1_genc++_headers"],
+    shared_libs: [
+        "libhidl",
+        "libhwbinder",
+        "libutils",
+        "libcutils",
+    ],
+}