Add missing include to fix compile error (#1358)

portable/ThirdParty/GCC/RP2040/include/portmacro.h

diff --git a/portable/ThirdParty/GCC/RP2040/include/portmacro.h b/portable/ThirdParty/GCC/RP2040/include/portmacro.h
index 68686f8..d817371 100644
--- a/portable/ThirdParty/GCC/RP2040/include/portmacro.h
+++ b/portable/ThirdParty/GCC/RP2040/include/portmacro.h
@@ -38,6 +38,7 @@
 
 #include "pico.h"
 #include "hardware/sync.h"
+#include "rp2040_config.h"
 
 /*-----------------------------------------------------------
  * Port specific definitions.