define macro in header so not limited to cmake build

Author: winskuo-quic

backends/qualcomm/CMakeLists.txt

@@ -248,8 +248,6 @@ target_link_libraries(
           extension_tensor qnn_backend_options
 )
 
-# Add CTX_BIN_ALIGNMENT here so all backend files has access to this macro.
-add_compile_definitions(QNN_CTX_BIN_ALIGNMENT=256)
 if(${CMAKE_SYSTEM_PROCESSOR} MATCHES Hexagon)
   # Add macro here so we can dlopen the correct .so library.
   if(DSP_TYPE STREQUAL "3")

backends/qualcomm/runtime/backends/QnnCustomProtocol.h

@@ -18,6 +18,8 @@
 #include <tuple>
 #include <vector>
 
+#define QNN_CTX_BIN_ALIGNMENT 256
+
 namespace executorch {
 namespace backends {
 namespace qnn {

backends/qualcomm/runtime/backends/direct_mode/QnnExecuTorchIdlWrapper.h

@@ -9,6 +9,7 @@
 
 #include "HAP_farf.h"
 
+#include <executorch/backends/qualcomm/runtime/backends/QnnCustomProtocol.h>
 #include <executorch/devtools/etdump/etdump_flatcc.h>
 #include <executorch/extension/data_loader/file_data_loader.h>
 #include <executorch/runtime/core/memory_allocator.h>