Perf: Support sw events across hotplug

When CPUs are hotplugged off and on, let the various
sw events continue after the hotplug.

Change-Id: Id1aaf30c459c9cf7c9c38967f9ccad56d4062fd3
Signed-off-by: Neil Leeder <nleeder@codeaurora.org>
diff --git a/arch/arm/mach-msm/perf_debug.c b/arch/arm/mach-msm/perf_debug.c
index d36b431..74678ae 100644
--- a/arch/arm/mach-msm/perf_debug.c
+++ b/arch/arm/mach-msm/perf_debug.c
@@ -33,6 +33,7 @@
 	"13 msm: perf: Add L2 support for tracecounters\n"
 	"14 Perf: keep events across hotplug\n"
 	"15 Perf: bring CPU online if needed when disabling irq\n"
+	"16 Perf: Support sw events across hotplug\n"
 ;
 
 static ssize_t desc_read(struct file *fp, char __user *buf,