platform/mellanox: mlxbf-pmc: Add support for monitoring cycle count

Add support for programming any counter to monitor the cycle count.
This will allow the user to repurpose and dedicate any of the counters
in the block to counting cycles.

Signed-off-by: Shravan Kumar Ramani <shravankr@nvidia.com>
Reviewed-by: David Thompson <davthompson@nvidia.com>
Reviewed-by: Vadim Pasternak <vadimp@nvidia.com>
Link: https://lore.kernel.org/r/bd7747897cf1ce77e2e39e271cac21684830f7e7.1736413033.git.shravankr@nvidia.com


Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>