drivers: serial: stm32: Make header file self-contained

Move select include directives from source to header file, as these pull
data types required by the struct definitions contained within it.

This promotes a more modular file structure.

Signed-off-by: Kenneth J. Miller <[email protected]>

Author: knthm

drivers/serial/uart_stm32.c

@@ -20,9 +20,7 @@
 #include <soc.h>
 #include <zephyr/init.h>
 #include <zephyr/drivers/interrupt_controller/exti_stm32.h>
-#include <zephyr/drivers/uart.h>
 #include <zephyr/drivers/clock_control.h>
-#include <zephyr/drivers/reset.h>
 #include <zephyr/pm/policy.h>
 #include <zephyr/pm/device.h>
 

drivers/serial/uart_stm32.h

@@ -13,6 +13,8 @@
 #define ZEPHYR_DRIVERS_SERIAL_UART_STM32_H_
 
 #include <zephyr/drivers/pinctrl.h>
+#include <zephyr/drivers/reset.h>
+#include <zephyr/drivers/uart.h>
 
 #include <stm32_ll_usart.h>