x86_energy_perf_policy: Define BCLK_MHZ

Replace the hardcoded value 100 with a named symbolic constant BCLK_MHZ in
ratio_2_sysfs_khz() to document the assumed bus clock frequency.

The comment already notes "Assumption: All HWP systems have 100 MHz
bus clock". A symbolic constant reinforces this assumption at the
point of use and makes it trivial to find if the assumption ever
needs revisiting.

Fixes: d5532ee7b40b ("tools: create power/x86/x86_energy_perf_policy")
Assisted-by: GitHub-Copilot:Claude-Sonnet-4.6
Signed-off-by: Len Brown <len.brown@intel.com>

0 files changed, 0 insertions, 0 deletions