since _IMPORT_PREFIX=/opt/gentoo/usr/lib/hip, INTERFACE_INCLUDE_DIRECTORIES should change

--- orig/hip-config.cmake.in
+++ HIP-rocm-4.2.0/hip-config.cmake.in
@@ -185,8 +185,8 @@ if(HIP_RUNTIME MATCHES "rocclr")
 
   if(NOT WIN32)
     set_target_properties(hip::device PROPERTIES
-      INTERFACE_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/../include"
-      INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/../include"
+      INTERFACE_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include"
+      INTERFACE_SYSTEM_INCLUDE_DIRECTORIES "${_IMPORT_PREFIX}/include"
     )
   endif()
 endif()