Build bzip2/bunzip2/bzcat.

Bug: http://b/36653808
Test: builds

(cherry picked from commit 9fa5f2d123ef61213bb74d261a982a5da30147de)

Change-Id: Ia218b519c92d2a38f22a4de28c30d1acad723aa6
diff --git a/Android.bp b/Android.bp
index b0f642b..897dc77 100644
--- a/Android.bp
+++ b/Android.bp
@@ -12,7 +12,6 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-
 cc_library_static {
     name: "libbz",
     host_supported: true,
@@ -41,3 +40,19 @@
     sdk_version: "9",
     stl: "none",
 }
+
+cc_binary {
+    name: "bzip2",
+    srcs: ["bzip2.c"],
+    // This is only static because we don't currently have libbz.so on device.
+    // If that changes, change this too.
+    static_libs: ["libbz"],
+    stl: "none",
+    cflags: [
+        "-Wno-unused-parameter",
+    ],
+    symlinks: [
+        "bunzip2",
+        "bzcat",
+    ],
+}