[Bug] duo：build warnings #8977
Description
一处是在 board/board.c
board/board.c: In function 'rt_hw_board_init':
board/board.c:26:5: warning: implicit declaration of function 'rt_hw_tick_init'; did you mean 'rt_hw_stack_init'? [-Wimplicit-function-declaration]
26 | rt_hw_tick_init();
| ^~~~~~~~~~~~~~~
| rt_hw_stack_init
board/board.c:29:5: warning: implicit declaration of function 'rt_hw_uart_init'; did you mean 'rt_hw_board_init'? [-Wimplicit-function-declaration]
29 | rt_hw_uart_init();
| ^~~~~~~~~~~~~~~
| rt_hw_board_init
一处是在 libcpu/risc-v/common/trap_common.c
/home/u/ws/duo/rt-thread/libcpu/risc-v/common/trap_common.c: In function 'rt_hw_interrupt_install':
/home/u/ws/duo/rt-thread/libcpu/risc-v/common/trap_common.c:50:11: warning: unused variable 'user_param' [-Wunused-variable]
50 | void *user_param = param;
| ^~~~~~~~~~
/home/u/ws/duo/rt-thread/libcpu/risc-v/common/trap_common.c: In function 'rt_rv32_system_irq_handler':
/home/u/ws/duo/rt-thread/libcpu/risc-v/common/trap_common.c:77:25: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
77 | s_stack_frame = (rt_hw_stack_frame_t *)mscratch;
| ^
一处是在 libcpu/risc-v/rv64/trap.c
/home/u/ws/duo/rt-thread/libcpu/risc-v/rv64/trap.c: In function 'handle_trap':
/home/u/ws/duo/rt-thread/libcpu/risc-v/rv64/trap.c:106:13: warning: implicit declaration of function 'rt_hw_tick_isr'; did you mean 'rt_hw_stack_init'? [-Wimplicit-function-declaration]
106 | rt_hw_tick_isr();
| ^~~~~~~~~~~~~~
| rt_hw_stack_init
/home/u/ws/duo/rt-thread/libcpu/risc-v/rv64/trap.c:110:13: warning: implicit declaration of function 'rt_hw_irq_isr'; did you mean 'rt_hw_soft_irq_isr'? [-Wimplicit-function-declaration]
110 | rt_hw_irq_isr();
| ^~~~~~~~~~~~~
| rt_hw_soft_irq_isr