Hotfix: Be more aggressive about SPI2 init on v1 boards

src/drivers/boards/px4fmu-v1/px4fmu_init.c

@@ -222,14 +222,9 @@ __EXPORT int nsh_archinitialize(void)
 	 * If SPI2 is enabled in the defconfig, we loose some ADC pins as chip selects.
 	 * Keep the SPI2 init optional and conditionally initialize the ADC pins
 	 */
-	spi2 = up_spiinitialize(2);
 
-	if (!spi2) {
+	#ifdef CONFIG_STM32_SPI2
-		message("[boot] Enabling IN12/13 instead of SPI2\n");
+		spi2 = up_spiinitialize(2);
-		/* no SPI2, use pins for ADC */
-		stm32_configgpio(GPIO_ADC1_IN12);
-		stm32_configgpio(GPIO_ADC1_IN13);	// jumperable to MPU6000 DRDY on some boards
-	} else {
 		/* Default SPI2 to 1MHz and de-assert the known chip selects. */
 		SPI_SETFREQUENCY(spi2, 10000000);
 		SPI_SETBITS(spi2, 8);
@@ -238,7 +233,13 @@ __EXPORT int nsh_archinitialize(void)
 		SPI_SELECT(spi2, PX4_SPIDEV_ACCEL_MAG, false);
 
 		message("[boot] Initialized SPI port2 (ADC IN12/13 blocked)\n");
-	}
+	#else
+		spi2 = NULL;
+		message("[boot] Enabling IN12/13 instead of SPI2\n");
+		/* no SPI2, use pins for ADC */
+		stm32_configgpio(GPIO_ADC1_IN12);
+		stm32_configgpio(GPIO_ADC1_IN13);	// jumperable to MPU6000 DRDY on some boards
+	#endif
 
 	/* Get the SPI port for the microSD slot */