!883 modify the preloader_output_dir to adapter product_name

Merge pull request !883 from chuxuezhe11/OpenHarmony-3.2-Beta1

services/etc/BUILD.gn

@@ -148,19 +148,18 @@ if (defined(ohos_lite)) {
   }
 
   ohos_prebuilt_etc("syscap.para") {
-    source =
-        "${preloader_output_dir}/${product_name}/system/etc/param/syscap.para"
+    source = "${preloader_output_dir}/system/etc/param/syscap.para"
     module_install_dir = "etc/param/"
     part_name = "init"
   }
 
   ohos_prebuilt_etc("syscap.json") {
-    source = "${preloader_output_dir}/${product_name}/system/etc/syscap.json"
+    source = "${preloader_output_dir}/system/etc/syscap.json"
     part_name = "init"
   }
 
   ohos_prebuilt_etc("systemcapability.json") {
-    source = "${preloader_output_dir}/${product_name}/system/etc/SystemCapability.json"
+    source = "${preloader_output_dir}/system/etc/SystemCapability.json"
     part_name = "init"
   }