perf, x86: Fix the !CONFIG_CPU_SUP_INTEL build

Fix typo. But the modularization here is ugly and should be improved.

Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

arch/x86/kernel/cpu/perf_event_intel_ds.c

@@ -661,7 +661,7 @@ static void intel_ds_init(void)
 
 #else /* CONFIG_CPU_SUP_INTEL */
 
-static int reseve_ds_buffers(void)
+static int reserve_ds_buffers(void)
 {
 	return 0;
 }