Avoid zero-length array allocations (#427)

src/Ryujinx.HLE/HOS/Horizon.cs

@@ -341,7 +341,7 @@ namespace Ryujinx.HLE.HOS
         {
             if (VirtualAmiibo.ApplicationBytes.Length > 0)
             {
-                VirtualAmiibo.ApplicationBytes = new byte[0];
+                VirtualAmiibo.ApplicationBytes = Array.Empty<byte>();
                 VirtualAmiibo.InputBin = string.Empty;
             }
             if (NfpDevices[nfpDeviceId].State == NfpDeviceState.SearchingForTag)
@@ -356,7 +356,7 @@ namespace Ryujinx.HLE.HOS
             VirtualAmiibo.InputBin = path;
             if (VirtualAmiibo.ApplicationBytes.Length > 0)
             {
-                VirtualAmiibo.ApplicationBytes = new byte[0];
+                VirtualAmiibo.ApplicationBytes = Array.Empty<byte>();
             }
             byte[] encryptedData = File.ReadAllBytes(path);
             VirtualAmiiboFile newFile = AmiiboBinReader.ReadBinFile(encryptedData);

src/Ryujinx.HLE/HOS/Services/Nfc/Nfp/VirtualAmiibo.cs

@@ -16,7 +16,7 @@ namespace Ryujinx.HLE.HOS.Services.Nfc.Nfp
     static class VirtualAmiibo
     {
         public static uint OpenedApplicationAreaId;
-        public static byte[] ApplicationBytes = new byte[0];
+        public static byte[] ApplicationBytes = Array.Empty<byte>();
         public static string InputBin = string.Empty;
         public static string NickName = string.Empty;
         private static readonly AmiiboJsonSerializerContext _serializerContext = AmiiboJsonSerializerContext.Default;
@@ -137,7 +137,7 @@ namespace Ryujinx.HLE.HOS.Services.Nfc.Nfp
             if (ApplicationBytes.Length > 0)
             {
                 byte[] bytes = ApplicationBytes;
-                ApplicationBytes = new byte[0];
+                ApplicationBytes = Array.Empty<byte>();
                 return bytes;
             }
             VirtualAmiiboFile virtualAmiiboFile = LoadAmiiboFile(amiiboId);