uprobes: Make arch_uprobe_task->saved_trap_nr "unsigned int"

Make arch_uprobe_task->saved_trap_nr "unsigned int" and move it down
after ->saved_scratch_register, this changes sizeof() from 24 to 16.

Signed-off-by: Oleg Nesterov <[e-mail]>
Acked-by: Srikar Dronamraju <[e-mail]>

arch/x86/include/asm/uprobes.h

···
 };
 
 struct arch_uprobe_task {
-	unsigned long			saved_trap_nr;
 #ifdef CONFIG_X86_64
 	unsigned long			saved_scratch_register;
 #endif
+	unsigned int			saved_trap_nr;
 	unsigned int			saved_tf;
 };