[llvm] [orc-rt] Add Windows virtual memory support (PR #224521)

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``````````diff
--- lit.cfg.py	2026-09-23 05:22:54.000000 +0000
+++ lit.cfg.py	2026-09-23 05:26:05.527907 +0000
@@ -96,11 +96,11 @@
 # reports against an independent source.
 config.substitutions.append(("%target-arch", config.target_triple.split("-")[0]))
 
 # Add the page size from mmap this allows us to avoid another if statement as
 # it would likely need ctypes for windows as it does not support sysconf
-config.substituions.append(('%host-page-size', mmap.PAGESIZE))
+config.substituions.append(("%host-page-size", mmap.PAGESIZE))
 
 # Add host OS and arch substitutions for host-detection tests.
 config.substitutions.append(("%host-arch", platform.machine()))
 if platform.system() == "Darwin":
     config.substitutions.append(("%host-os", "macosx"))

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https://github.com/llvm/llvm-project/pull/224521