fix[rsoc]: stm32h7xx rtc compilation issue #7833

Job	Run time
🔍 Summary of Git Diff Changes	38s
stm32l4	12m 2s
stm32_f2_f4	9m 47s
RT-Thread Online Packages (STM32F407 RT-Spark)	8m 40s
stm32_f7_g0_h7_mp15_u5_h5_wb5	8m 47s
llvm-arm	3m 45s
stm32f0_f1	7m 7s
collect-artifacts	0s
	50m 46s

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