arch/arm/src/stm32/stm32_oneshot.c:
arch/arm/src/stm32/stm32_oneshot.h:
arch/arm/src/stm32/stm32_oneshot_lowerhalf.c:
arch/arm/src/stm32/stm32_dbgmcu.h:
* Fix nxstyle errors.
arch/arm/src/stm32/stm32_lsi.c:
* Fix nxstyle errors.
* Also a minor grammar fix in a comment: add "in" to "setting the
LSION bit in the RCC CSR register."