SWDEV-410522 - Update doxygen config file to handle default parameter

Change-Id: I92afc697ecd772743d2200b621d19e9911d3d9f8

docs/doxygen/Doxyfile

@@ -2193,7 +2193,8 @@ INCLUDE_FILE_PATTERNS  =
 # recursively expanded use the := operator instead of the = operator.
 # This tag requires that the tag ENABLE_PREPROCESSING is set to YES.
 
-PREDEFINED             = __HIP_PLATFORM_AMD__
+PREDEFINED             = __HIP_PLATFORM_AMD__ \
+                         __dparm(x)=
 
 # If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then this
 # tag can be used to specify a list of macro names that should be expanded. The