oprofile: fixing whitespaces in arch/x86/oprofile/*

Signed-off-by: Robert Richter <robert.richter@amd.com>
diff --git a/arch/x86/oprofile/backtrace.c b/arch/x86/oprofile/backtrace.c
index 36e3241..04df67f 100644
--- a/arch/x86/oprofile/backtrace.c
+++ b/arch/x86/oprofile/backtrace.c
@@ -52,8 +52,7 @@
 	unsigned long ret;
 } __attribute__((packed));
 
-static struct frame_head *
-dump_user_backtrace(struct frame_head *head)
+static struct frame_head *dump_user_backtrace(struct frame_head *head)
 {
 	struct frame_head bufhead[2];