Rename the U3/U5 GPIO and EXTI sources to stm32_gpio_m33_v1.c and
stm32_exti_gpio_m33_v1.c and gate them with new
STM32_HAVE_IP_GPIO_M33_V1 and STM32_HAVE_IP_EXTI_M33_V1 symbols
selected by the U3 and U5 peripheral options.
Rename the GPIO and EXTI hardware headers to stm32_gpio_m33_v1.h and
stm32_exti_m33_v1.h with their register maps unchanged, dispatch to
them from the common GPIO and EXTI hardware headers by the new IP
symbols, and widen STM32_EXTI_EXTICR_PORT_MASK to the full 8-bit
EXTICR port-select field.
Signed-off-by: raiden00pl <raiden00@railab.me>
Assisted-by: Claude Code
399f76d6ed