ARC: dw2 unwind: Fix trailing semicolon

The trailing semicolon is an empty statement that does no operation.
Removing it since it doesn't do anything.
Signed-off-by: Luis de Bethencourt <luisbg@kernel.org>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>

arch/arc/kernel/unwind.c

@@ -366,7 +366,7 @@ static void init_unwind_hdr(struct unwind_table *table,
 	return;
 
 ret_err:
-	panic("Attention !!! Dwarf FDE parsing errors\n");;
+	panic("Attention !!! Dwarf FDE parsing errors\n");
 }
 
 #ifdef CONFIG_MODULES