wamr: add iwasm include directory to nuttx target

This patch allow from other module that outside
WAMR directory include `wasm_export.h` to use WAMR as library.

Signed-off-by: Huang Qi <huangqi3@xiaomi.com>

Author: no1wudi

interpreters/wamr/CMakeLists.txt

@@ -47,6 +47,12 @@ if(CONFIG_INTERPRETERS_WAMR)
 
   nuttx_add_library(wamr STATIC)
 
+  set_property(
+    TARGET nuttx
+    APPEND
+    PROPERTY NUTTX_INCLUDE_DIRECTORIES
+             ${CMAKE_CURRENT_SOURCE_DIR}/wamr/core/iwasm/include)
+
   include(${WAMR_DIR}/product-mini/platforms/nuttx/CMakeLists.txt)
   target_sources(wamr PRIVATE ${WAMR_SOURCES})
   target_compile_options(wamr PRIVATE ${WAMR_CFLAGS})