[sx1278] Updated submodule

src/tests/radio/sx1278/fsk/test-sx1278-bidir.cpp

src/tests/radio/sx1278/fsk/test-sx1278-mavlink.cpp

src/tests/radio/sx1278/lora/test-sx1278-bidir.cpp

src/tests/radio/sx1278/lora/test-sx1278-mavlink.cpp

src/tests/radio/sx1278/lora/test-sx1278-simple.cpp

src/tests/radio/sx1278/sx1278-init.h

src/tests/radio/sx1278/test-sx1278-bench.cpp