Combine a message as one string and give it to snet_event_log

snet_event_log gets 3 arguments. Combine a message of revoking
permission when group changed and give it to 3rd argument of
snet_event_log.

Test: Repo'd scenario and looked at log
Bug: 79443138
Change-Id: Iecf0505bb7927891aa879d0cacedcf94872b9452
diff --git a/services/core/java/com/android/server/pm/permission/PermissionManagerService.java b/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
index 0070ca4..36fc120 100644
--- a/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
+++ b/services/core/java/com/android/server/pm/permission/PermissionManagerService.java
@@ -449,9 +449,10 @@
                                     userId) == PackageManager.PERMISSION_GRANTED) {
                                 EventLog.writeEvent(0x534e4554, "72710897",
                                         newPackage.applicationInfo.uid,
-                                        "Revoking permission", permissionName, "from package",
-                                        packageName, "as the group changed from",
-                                        oldPermissionGroupName, "to", newPermissionGroupName);
+                                        "Revoking permission " + permissionName +
+                                        " from package " + packageName +
+                                        " as the group changed from " + oldPermissionGroupName +
+                                        " to " + newPermissionGroupName);
 
                                 try {
                                     revokeRuntimePermission(permissionName, packageName, false,