ARMeilleure: Implement TPIDR2_EL0

This is an implementation of the TPIDR2_EL0 register. There may be more
potential use-cases for this register not included in this PR, but this
implements the use-case seen in SuperTuxKart.

src/ARMeilleure/State/NativeContext.cs

@@ -21,6 +21,7 @@ namespace ARMeilleure.State
             public ulong ExclusiveValueLow;
             public ulong ExclusiveValueHigh;
             public int Running;
+            public long Tpidr2El0;
         }
 
         private static NativeCtxStorage _dummyStorage = new();
@@ -176,6 +177,9 @@ namespace ARMeilleure.State
         public long GetTpidrroEl0() => GetStorage().TpidrroEl0;
         public void SetTpidrroEl0(long value) => GetStorage().TpidrroEl0 = value;
 
+        public long GetTpidr2El0() => GetStorage().Tpidr2El0;
+        public void SetTpidr2El0(long value) => GetStorage().Tpidr2El0 = value;
+
         public int GetCounter() => GetStorage().Counter;
         public void SetCounter(int value) => GetStorage().Counter = value;
 
@@ -232,6 +236,11 @@ namespace ARMeilleure.State
             return StorageOffset(ref _dummyStorage, ref _dummyStorage.TpidrroEl0);
         }
 
+        public static int GetTpidr2El0Offset()
+        {
+            return StorageOffset(ref _dummyStorage, ref _dummyStorage.Tpidr2El0);
+        }
+
         public static int GetCounterOffset()
         {
             return StorageOffset(ref _dummyStorage, ref _dummyStorage.Counter);