DFU related build fixes

lib_xua/api/xua.h

@@ -10,6 +10,8 @@
 #include "xua_endpoint0.h"
 
 #include "xua_buffer.h"
+
+//#include "xua_dfu.h"
 #endif
 
 #endif

lib_xua/src/core/audiohub/xua_audiohub.xc

@@ -1047,11 +1047,6 @@ void SpdifTxWrapper(chanend c_spdif_tx)
 /* This function is a dummy version of the deliver thread that does not
    connect to the codec ports. It is used during DFU reset. */
 
-#if (XUA_DFU == 1)
-[[distributable]]
-void DFUHandler(server interface i_dfu i, chanend ?c_user_cmd);
-#endif
-
 #pragma select handler
 void testct_byref(chanend c, int &returnVal)
 {

lib_xua/src/core/main.xc

@@ -49,7 +49,7 @@
 #include "xua_pdm_mic.h"
 #endif
 
-#ifdef DFU
+#if XUA_DFU_EN == 1
 [[distributable]]
 void DFUHandler(server interface i_dfu i, chanend ?c_user_cmd);
 #endif