trace, documentation: Fix branch profiling location in debugfs

The debugfs interface for branch profiling is through

	/sys/kernel/debug/tracing/trace_stat/branch_annotated
	/sys/kernel/debug/tracing/trace_stat/branch_all

so update the Kconfig accordingly.
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
LKML-Reference: <alpine.DEB.2.00.1103161716320.11407@chino.kir.corp.google.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

kernel/trace/Kconfig

@@ -275,7 +275,7 @@ config PROFILE_ANNOTATED_BRANCHES
 	  This tracer profiles all the the likely and unlikely macros
 	  in the kernel. It will display the results in:
 
-	  /sys/kernel/debug/tracing/profile_annotated_branch
+	  /sys/kernel/debug/tracing/trace_stat/branch_annotated
 
 	  Note: this will add a significant overhead; only turn this
 	  on if you need to profile the system's use of these macros.
@@ -288,7 +288,7 @@ config PROFILE_ALL_BRANCHES
 	  taken in the kernel is recorded whether it hit or miss.
 	  The results will be displayed in:
 
-	  /sys/kernel/debug/tracing/profile_branch
+	  /sys/kernel/debug/tracing/trace_stat/branch_all
 
 	  This option also enables the likely/unlikely profiler.