SPI Device API (#304)

* spi device config
* fix api_interrupt_call warning
* added configs for spi2 bus devices
* simplified spi bus api
* use new spi device api

firmware/targets/f4/api-hal/api-hal-spi-config.h

@@ -0,0 +1,18 @@
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct {
+    SPI_HandleTypeDef* spi;
+    const SPI_InitTypeDef config;
+} SPIDevice;
+
+extern const SPIDevice sd_fast_spi;
+extern const SPIDevice sd_slow_spi;
+extern const SPIDevice display_spi;
+
+#ifdef __cplusplus
+}
+#endif