drivers: uart_ns16550: Fix naming for struct uart_ns16550_dev_data_t
drivers: uart_ns16550: Fix naming for struct uart_ns16550_dev_data_t

Rename uart_ns16550_dev_data_t to uart_ns16550_dev_data since it's not a
typedef.

Signed-off-by: Johan Hedberg <628991c7b0a19c384f9b99c21ec330ce952bb838@intel.com>

galak/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr,galak/zephyr,finikorg/zephyr,finikorg/zephyr,finikorg/zephyr,galak/zephyr,galak/zephyr,finikorg/zephyr,zephyrproject-rtos/zephyr