cpufreq: intel_pstate: Support Clearwater Forest OOB mode

commit 3ead77989c20cb2d774a3b6045d7a928b6fb53ed upstream.

Prevent intel_pstate from loading when OOB (Out Of Band) P-states mode is
enabled.

Intel-SIG: commit 3ead77989c20 cpufreq: intel_pstate: Support Clearwater Forest OOB mode
Support OOB CPU frequency control for EMR/GNR/SRF/GRR/CWF

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/20250808145122.4057208-1-srinivas.pandruvada@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
[ Zhang Rui: resolve conflict (use old X86 Macro) and amend commit log ]
Signed-off-by: Zhang Rui <rui.zhang@intel.com>

Author: spandruvada

drivers/cpufreq/intel_pstate.c

@@ -2366,6 +2366,7 @@ static const struct x86_cpu_id intel_pstate_cpu_oob_ids[] __initconst = {
 	X86_MATCH(GRANITERAPIDS_X,	core_funcs),
 	X86_MATCH(ATOM_CRESTMONT,	core_funcs),
 	X86_MATCH(ATOM_CRESTMONT_X,	core_funcs),
+	X86_MATCH(ATOM_DARKMONT_X,	core_funcs),
 	{}
 };