Updated all examples to use the new/old usart_set_baudrate api.

examples/stm32/f1/other/adc_temperature_sensor/adc.c

@@ -34,7 +34,7 @@ void usart_setup(void)
 		      GPIO_CNF_OUTPUT_ALTFN_PUSHPULL, GPIO_USART1_TX);
 
 	/* Setup UART parameters. */
-	usart_set_baudrate(USART1, 115200, rcc_ppre2_frequency);
+	usart_set_baudrate(USART1, 115200);
 	usart_set_databits(USART1, 8);
 	usart_set_stopbits(USART1, USART_STOPBITS_1);
 	usart_set_mode(USART1, USART_MODE_TX_RX);