Update units of memory from decimal to binary prefixes (#3716)

`MB` and `GB` can either be interpreted as having base-10 units, or
base-2. `MiB` and `GiB` removes this discrepancy so that units of memory
are always interpreted using base-2 units.

Ryujinx.HLE/HOS/Kernel/Common/MemroySize.cs

@@ -2,8 +2,8 @@ namespace Ryujinx.HLE.HOS.Kernel.Common
 {
     enum MemorySize : byte
     {
-        MemorySize4GB = 0,
-        MemorySize6GB = 1,
-        MemorySize8GB = 2
+        MemorySize4GiB = 0,
+        MemorySize6GiB = 1,
+        MemorySize8GiB = 2
     }
 }