i2c_spi_buses: respect CONFIG_I2C and CONFIG_SPI

- bmp280, dps310, and ms5611 barometers support boards without I2C

boards/beaglebone/blue/src/board_config.h

@@ -48,11 +48,16 @@
 
 
 // I2C
+#define CONFIG_I2C 1
 #define PX4_NUMBER_I2C_BUSES    2
 
 #define PX4_I2C_OBDEV_MPU9250 0x68
 
 
+// SPI
+#define CONFIG_SPI 1
+
+
 // ADC channels:
 #define ADC_CHANNELS (1 << 5)
 #define BOARD_ADC_POS_REF_V (1.8f)

boards/beaglebone/blue/src/spi.cpp

@@ -35,4 +35,8 @@
 #include <drivers/drv_sensor.h>
 
 constexpr px4_spi_bus_t px4_spi_buses[SPI_BUS_MAX_BUS_ITEMS] = {
+	initSPIBus(1, {
+		initSPIDevice(DRV_DEVTYPE_UNUSED, 1), // spidev1.1
+		initSPIDevice(DRV_DEVTYPE_UNUSED, 2), // spidev1.2
+	}),
 };