spi: avoid setting up clocks again as it conflicts with USART

source/drivers/stm32f0_spi.c

@@ -21,8 +21,8 @@ static struct spi_ops stm32f0_spi_ops = {
 static void stm32f0_spi_init(void)
 {
 	/* Set up clocks for SPI 1 */
-	rcc_clock_setup_in_hsi_out_48mhz();
+	//rcc_clock_setup_in_hsi_out_48mhz();
-	rcc_periph_clock_enable(RCC_GPIOA);
+	//rcc_periph_clock_enable(RCC_GPIOA);
 	rcc_periph_clock_enable(RCC_GPIOB);
 	rcc_periph_clock_enable(RCC_SPI1);