perf/x86/intel/uncore: Add Sapphire Rapids server PCU support

The PCU is the primary power controller for the Sapphire Rapids.

Except the name, all the information can be retrieved from the discovery
tables.
Signed-off-by: NKan Liang <kan.liang@linux.intel.com>
Signed-off-by: NPeter Zijlstra (Intel) <peterz@infradead.org>
Reviewed-by: NAndi Kleen <ak@linux.intel.com>
Link: https://lore.kernel.org/r/1625087320-194204-7-git-send-email-kan.liang@linux.intel.com

arch/x86/events/intel/uncore_snbep.c

@@ -5633,6 +5633,10 @@ static struct intel_uncore_type spr_uncore_m2pcie = {
 	.name			= "m2pcie",
 };
 
+static struct intel_uncore_type spr_uncore_pcu = {
+	.name			= "pcu",
+};
+
 #define UNCORE_SPR_NUM_UNCORE_TYPES		12
 
 static struct intel_uncore_type *spr_uncores[UNCORE_SPR_NUM_UNCORE_TYPES] = {
@@ -5640,7 +5644,7 @@ static struct intel_uncore_type *spr_uncores[UNCORE_SPR_NUM_UNCORE_TYPES] = {
 	&spr_uncore_iio,
 	&spr_uncore_irp,
 	&spr_uncore_m2pcie,
-	NULL,
+	&spr_uncore_pcu,
 	NULL,
 	NULL,
 	NULL,