feat(intel): implement timer init divider via cpu frequency. (#1)

Get cpu frequency and update the timer init div with it.
The timer is vary based on the cpu frequency instead of hardcoded.
The implementation shall apply to only Agilex and S10

Signed-off-by: Jit Loon Lim <jit.loon.lim@intel.com>
Change-Id: I61684d9762ad34e5a60b8b176b60c8848db4b422
12 files changed