1. Populate the _features flag with available CPU features (CPU_PMULL, CPU_LSE, etc.) in https://github.com/openjdk/jdk/blob/c6a8027b94bbcbde5f7dcabd0bff48b93bbb5a7f/src/hotspot/os_cpu/windows_aarch64/vm_version_windows_aarch64.cpp#L45

references:
https://github.com/google/cpu_features/blob/main/src/impl_aarch64_windows.c

https://learn.microsoft.com/en-us/windows/win32/api/processthreadsapi/nf-processthreadsapi-isprocessorfeaturepresent