修复 GCC编译时可能会导致的error: unknown type name 'clock_t' 问题 #6357

Job	Run time
🔍 Summary of Git Diff Changes	40s
RTduino_Arduino Libraries (Raspberry Pico)	8m 41s
others_ft32_mm32_acm32	3m 20s
RT-Thread Online Packages (STM32F407 RT-Spark)	5m 28s
at32_hc32_ht32	4m 40s
stm32_f7_g0_h7_mp15_u5_h5_wb5	6m 26s
stm32f0_f1	4m 39s
stm32_f2_f4	11m 7s
stm32l4	8m 17s
aarch64	56s
nxp_renesas	5m 23s
riscv64-unknown	52s
nuvoton	3m 27s
riscv-none	3m 2s
llvm-arm	4m 2s
nordic(yml)	6m 52s
mips	54s
K230	1m 16s
simulator	1m 6s
i386-unknown	44s
xuantie	1m 5s
ESP32C3	7m 27s
hpmicro	50s
gd32_n32_apm32	3m 27s
Infineon_TI_microchip	5m 41s
arm-none-bsp-smart	2m 28s
collect-artifacts	0s
	1h 42m 50s

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