Improve _PyType_Lookup performance for ARM64

Summary: A small tweak to `_PyType_Lookup` to improve the situation on ARM to increasing the cache size - we have more memory per core on ARM so we should take advantage of it. This increases the used cache size from 96k to 384k.

Reviewed By: itamaro

Differential Revision: D111090602

fbshipit-source-id: ab725fb8c024326ddaf173b4115878be55747da1

Author: DinoV

Include/internal/pycore_typeobject.h

@@ -32,7 +32,11 @@ struct type_cache_entry {
     PyObject *value;       // borrowed reference or NULL
 };
 
+#if defined(__aarch64__)
+#define MCACHE_SIZE_EXP 14
+#else
 #define MCACHE_SIZE_EXP 12
+#endif
 
 struct type_cache {
     struct type_cache_entry hashtable[1 << MCACHE_SIZE_EXP];