perf/x86/intel/uncore: Support IIO free-running counters on DMR

perf/x86/intel/uncore: Support IIO free-running counters on DMR

The free-running counters for IIO uncore blocks on Diamond Rapids are
similar to Sapphire Rapids IMC freecounters, with the following
differences:

- The counters are MMIO based.
- Only a subset of IP blocks implement free-running counters:
  HIOP0 (IP Base Addr: 2E7000h)
  HIOP1 (IP Base Addr: 2EF000h)
  HIOP3 (IP Base Addr: 2FF000h)
  HIOP4 (IP Base Addr: 307000h)
- IMH2 (Secondary IMH) does not provide free-running counters.

Signed-off-by: Zide Chen <zide.chen@intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: Dapeng Mi <dapeng1.mi@linux.intel.com>
Link: https://patch.msgid.link/20251231224233.113839-9-zide.chen@intel.com