Place continuation history on large pages.
Requires THP madvise or always. With THP never, MADV_HUGEPAGE is ignored and there is no benefit.
```
Result of 50 runs (nps)
==================
speedup = +0.0176
paired t-test = t = 2.320, p = 0.0245
Result of 200 runs (nps)
==================
speedup = +0.0104
paired t-test = t = 3.415, p = 0.0008
```
STC passed:
LLR: 3.42 (-2.94,2.94) <0.00,2.00>
Total: 231360 W: 60152 L: 59553 D: 111655
https://tests.stockfishchess.org/tests/view/6a736a122cf557d58a2e1f51
Edit: Removed wrong test details
Edit2: Added result for 200 runs
closes https://github.com/official-stockfish/Stockfish/pull/7041
No functional change