Description: Correct the part name to the giflib defined by SPLE

IssueNo: https://gitee.com/openharmony/third_party_giflib/issues/I6MZGD
Feature or Bugfix: Bugfix
Binary Source:NO
Signed-off-by: xing-tai-zhang <zhangxingtai@huawei.com>

BUILD.gn

@@ -64,7 +64,7 @@ if (defined(ohos_lite)) {  # is on lite Os for ipcamera
   ohos_shared_library("libgif") {
     deps = [ ":gif_static" ]
     subsystem_name = "thirdparty"
-    part_name = "thirdparty_giflib"
+    part_name = "giflib"
     output_name = "libgif"
     install_enable = true
   }

bundle.json

@@ -14,7 +14,7 @@
         "en": "README"
     },
     "component": {
-        "name": "thirdparty_giflib",
+        "name": "giflib",
         "subsystem": "thirdparty",
         "syscap": [],
         "features": [],