msm: perf: Fix debug node permissions

Fix testAllFilesInSysAreNotWritable failure by changing permissions
for [/sys/kernel/debug/perf_debug_tp/enabled] from 0777 to 0660

CRs-Fixed: 522471
Change-Id: Iea7fc2072ea00f011fd7a91fd16c936e42272b14
Signed-off-by: Sheetal Sahasrabudhe <sheetals@codeaurora.org>
diff --git a/arch/arm/mach-msm/perf_trace_counters.c b/arch/arm/mach-msm/perf_trace_counters.c
index 65b0d28..8fa73ae 100644
--- a/arch/arm/mach-msm/perf_trace_counters.c
+++ b/arch/arm/mach-msm/perf_trace_counters.c
@@ -106,7 +106,7 @@
 	dir = debugfs_create_dir("perf_debug_tp", NULL);
 	if (!dir)
 		return -ENOMEM;
-	file = debugfs_create_file("enabled", 0777, dir,
+	file = debugfs_create_file("enabled", 0660, dir,
 		&value, &fops_perftp);
 	if (!file) {
 		debugfs_remove(dir);