Documentation: xgene-pmu: Use /sys/bus/event_source/devices paths

To allow setting an appropriate parent for the struct pmu device
remove existing references to /sys/devices/ path.
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Link: https://lore.kernel.org/r/20240412161057.14099-9-Jonathan.Cameron@huawei.comSigned-off-by: Will Deacon <will@kernel.org>

Documentation/admin-guide/perf/xgene-pmu.rst

@@ -13,7 +13,7 @@ PMU (perf) driver
 
 The xgene-pmu driver registers several perf PMU drivers. Each of the perf
 driver provides description of its available events and configuration options
-in sysfs, see /sys/devices/<l3cX/iobX/mcbX/mcX>/.
+in sysfs, see /sys/bus/event_source/devices/<l3cX/iobX/mcbX/mcX>/.
 
 The "format" directory describes format of the config (event ID),
 config1 (agent ID) fields of the perf_event_attr structure. The "events"