!1834 reboot插件改为扫描目录安装，方便扩展

Merge pull request !1834 from ldy/master

services/modules/reboot/BUILD.gn

@@ -30,9 +30,9 @@ ohos_shared_library("rebootmodule") {
   part_name = "init"
   subsystem_name = "startup"
   if (target_cpu == "arm64") {
-    module_install_dir = "lib64/init"
+    module_install_dir = "lib64/init/reboot"
   } else {
-    module_install_dir = "lib/init"
+    module_install_dir = "lib/init/reboot"
   }
   install_images = [
     "system",

services/modules/reboot/reboot_static.c

@@ -157,7 +157,7 @@ const ParamCmdInfo *GetStartupPowerCtl(size_t *size)
 static void InitRebootHook_(RebootHookCtx *ctx)
 {
 #ifndef STARTUP_INIT_TEST // do not install
-    InitModuleMgrInstall("rebootmodule");
+    ModuleMgrScan("init/reboot");
 #endif
     PLUGIN_LOGI("Install rebootmodule.");
 }