perf/x86/intel: Add missing MODULE_DESCRIPTION() lines

Fix the 'make W=1 C=1' warnings:

  WARNING: modpost: missing MODULE_DESCRIPTION() in arch/x86/events/intel/intel-uncore.o
  WARNING: modpost: missing MODULE_DESCRIPTION() in arch/x86/events/intel/intel-cstate.o

Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Link: https://lore.kernel.org/r/20240530-md-arch-x86-events-intel-v1-1-8252194ed20a@quicinc.com

Author: Jeff Johnson

arch/x86/events/intel/cstate.c

@@ -114,6 +114,7 @@
 #include "../perf_event.h"
 #include "../probe.h"
 
+MODULE_DESCRIPTION("Support for Intel cstate performance events");
 MODULE_LICENSE("GPL");
 
 #define DEFINE_CSTATE_FORMAT_ATTR(_var, _name, _format)		\

arch/x86/events/intel/uncore.c

@@ -34,6 +34,7 @@ static struct event_constraint uncore_constraint_fixed =
 struct event_constraint uncore_constraint_empty =
 	EVENT_CONSTRAINT(0, 0, 0);
 
+MODULE_DESCRIPTION("Support for Intel uncore performance events");
 MODULE_LICENSE("GPL");
 
 int uncore_pcibus_to_dieid(struct pci_bus *bus)