minadbd: rename adb_server_main to minadbd_main.

adb_server_main in adb refers to the adb server on the host, not adbd.
Since there doesn't seem to be a good reason to reuse the declaration
from adb's headers, give minadbd a main function of its own.

Change-Id: I748f1a6822dc14c726cb73ef3b533c57a6615608
diff --git a/minadbd/minadbd.cpp b/minadbd/minadbd.cpp
new file mode 100644
index 0000000..349189c
--- /dev/null
+++ b/minadbd/minadbd.cpp
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "minadbd.h"
+
+#include <errno.h>
+#include <signal.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "adb.h"
+#include "adb_auth.h"
+#include "transport.h"
+
+int minadbd_main() {
+    adb_device_banner = "sideload";
+
+    signal(SIGPIPE, SIG_IGN);
+
+    // We can't require authentication for sideloading. http://b/22025550.
+    auth_required = false;
+
+    init_transport_registration();
+    usb_init();
+
+    VLOG(ADB) << "Event loop starting";
+    fdevent_loop();
+
+    return 0;
+}