[FL-950] CC1101 Stage1, SPI Refactoring, Drivers layer (#386)

* API HAL SPI: refactoring, split into layers, prepare ST HAL separation. API HAL SubGhz: initialize on start. Drivers: add basic cc1101 driver. Update API usage. Debug: increase max debugger port speed. Remove subghz apps.
* CC1101: chip status handling. ApiHalSpi: increase SubGhz bus speed to 8mhz. F4: backport subghz initialization.
* Api Hal SubGhz: rx path and frequency. CC1101: frequency control.
* SubGhz Application: basic tests
* SubGhz app: tone and packet test. API HAL SUBGHZ: update configs, add missing bits and pieces.

firmware/targets/f4/api-hal/api-hal-subghz.c

@@ -1,5 +1,11 @@
 #include "api-hal-subghz.h"
+#include <api-hal-spi.h>
+#include <cc1101.h>
 
-void api_hal_rf_band_set(RfBand band) {
-    
-}
+void api_hal_subghz_init() {
+    const ApiHalSpiDevice* device = api_hal_spi_device_get(ApiHalSpiDeviceIdSubGhz);
+    cc1101_init(device);
+    api_hal_spi_device_return(device);
+}
+
+void api_hal_subghz_band_set(RfBand band) {}