Move Baseband/RSSI threads into Processors.

firmware/baseband/proc_ais.hpp

@@ -23,6 +23,7 @@
 #define __PROC_AIS_H__
 
 #include "baseband_processor.hpp"
+#include "baseband_thread.hpp"
 
 #include "channel_decimator.hpp"
 #include "matched_filter.hpp"
@@ -47,6 +48,10 @@ public:
 	void execute(const buffer_c8_t& buffer) override;
 
 private:
+	static constexpr size_t baseband_fs = 2457600;
+
+	BasebandThread baseband_thread { baseband_fs, this, NORMALPRIO + 20 };
+
 	std::array<complex16_t, 512> dst;
 	const buffer_c16_t dst_buffer {
 		dst.data(),