perf cgroup: Fix a typo in kernel config

s/specificied/specified
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
Acked-by: Stephane Eranian <eranian@google.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <4D6F348C.2050804@cn.fujitsu.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

init/Kconfig

@@ -688,7 +688,7 @@ config CGROUP_PERF
 	depends on PERF_EVENTS && CGROUPS
 	help
 	  This option extends the per-cpu mode to restrict monitoring to
-	  threads which belong to the cgroup specificied and run on the
+	  threads which belong to the cgroup specified and run on the
 	  designated cpu.
 
 	  Say N if unsure.