add neon flag

stage4/07-pisdr-limesdr/00-run.sh

@@ -11,7 +11,7 @@ fi
 cd LimeSuite
 mkdir -p build
 cd build
-cmake -GNinja -DCMAKE_CXX_FLAGS=-latomic ..
+cmake -GNinja DCMAKE_CXX_FLAGS:STRING="-latomic -mfpu=neon" ..
 ninja install
 ldconfig
 cd ..