arm64: stacktrace: Move export for save_stack_trace_tsk()

Due to refactoring way back in bb53c820c5 ("arm64: stacktrace: avoid
listing stacktrace functions in stacktrace") the EXPORT_SYMBOL_GPL() for
save_stack_trace_tsk() is at the end of __save_stack_trace() rather than
the function it exports. Move it to the expected location.

Signed-off-by: Mark Brown <broonie@kernel.org>
Acked-by: Will Deacon <will@kernel.org>
Link: https://lore.kernel.org/r/20200710182402.50473-1-broonie@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>

arch/arm64/kernel/stacktrace.c

@@ -199,12 +199,12 @@ static noinline void __save_stack_trace(struct task_struct *tsk,
 
 	put_task_stack(tsk);
 }
-EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
 
 void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
 {
 	__save_stack_trace(tsk, trace, 1);
 }
+EXPORT_SYMBOL_GPL(save_stack_trace_tsk);
 
 void save_stack_trace(struct stack_trace *trace)
 {