[scudo][Fuchsia] Increase MaxNumCachedHint

This brings the value closer to other platforms and allows
for future improvements, see D133897.

GitOrigin-RevId: 2449f42427481518e3ca072d7d8db26c7020c3ce
diff --git a/lib/scudo/standalone/size_class_map.h b/lib/scudo/standalone/size_class_map.h
index 6b06095..8d5a560 100644
--- a/lib/scudo/standalone/size_class_map.h
+++ b/lib/scudo/standalone/size_class_map.h
@@ -235,7 +235,7 @@
   static const uptr MinSizeLog = 5;
   static const uptr MidSizeLog = 8;
   static const uptr MaxSizeLog = 17;
-  static const u32 MaxNumCachedHint = 10;
+  static const u32 MaxNumCachedHint = 12;
   static const uptr MaxBytesCachedLog = 10;
   static const uptr SizeDelta = Chunk::getHeaderSize();
 };