infra: Rename (some) remaining Kenji-NX references back to Ryujinx

src/LibKenjinx/Android/JniExportedMethods.cs

@@ -45,7 +45,7 @@ namespace LibKenjinx
 
             Logger.AddTarget(
                 new AsyncLogTargetWrapper(
-                    new AndroidLogTarget("KenjinxLog"),
+                    new AndroidLogTarget("RyujinxLog"),
                     1000,
                     AsyncLogTargetOverflowAction.Block
                 ));

src/Ryujinx/Modules/Updater/Updater.cs

@@ -104,7 +104,7 @@ namespace Ryujinx.Modules
 
                 foreach (var asset in fetched.Assets)
                 {
-                    if (asset.Name.StartsWith("kenjinx") && asset.Name.EndsWith(_platformExt))
+                    if (asset.Name.StartsWith("ryujinx") && asset.Name.EndsWith(_platformExt))
                     {
                         _buildUrl = asset.BrowserDownloadUrl;