Update data type and comments on tagSocket/untagSocket APIs

- Fix comment in version script to say LL-NDK, not NDK
- Use uint32_t for tag

Bug: 223423155
Test: CtsNetTestCases:android.net.TrafficStatsTest
Test: CtsNativeNetPlatformTestCases
Change-Id: Ifb819ed0adeb8f173b98c3f131a4bf2e0715dd4e

native/android/libandroid_net.map.txt

@@ -5,20 +5,20 @@
 # which might be a few years old.
 LIBANDROID_NET {
   global:
-    # These functions have been part of the NDK since API 24.
+    # These functions have been part of the LL-NDK since API 24.
     android_getaddrinfofornetwork; # llndk
     android_setsocknetwork; # llndk
     android_setprocnetwork; # llndk
-    # These functions have been part of the NDK since API 29.
+    # These functions have been part of the LL-NDK since API 29.
     android_res_cancel; # llndk
     android_res_nquery; # llndk
     android_res_nresult; # llndk
     android_res_nsend; # llndk
-    # These functions have been part of the NDK since API 31.
+    # These functions have been part of the LL-NDK since API 31.
     android_getprocnetwork; # llndk
     android_setprocdns; # llndk
     android_getprocdns; # llndk
-    # These functions have been part of the NDK since API 33.
+    # These functions have been part of the LL-NDK since API 33.
     android_tag_socket_with_uid; # llndk
     android_tag_socket;  # llndk
     android_untag_socket; # llndk

native/android/net.c

@@ -162,11 +162,11 @@ void android_res_cancel(int nsend_fd) {
     resNetworkCancel(nsend_fd);
 }
 
-int android_tag_socket_with_uid(int sockfd, int tag, uid_t uid) {
+int android_tag_socket_with_uid(int sockfd, uint32_t tag, uid_t uid) {
     return tagSocket(sockfd, tag, uid);
 }
 
-int android_tag_socket(int sockfd, int tag) {
+int android_tag_socket(int sockfd, uint32_t tag) {
     return tagSocket(sockfd, tag, -1);
 }