roctracer-proto pkg-config fix to includedir

[ROCm/hip commit: 88628c757f]

projects/hip/CMakeLists.txt

@@ -158,7 +158,7 @@ if(USE_PROF_API EQUAL 1)
         find_package(PkgConfig)
         pkg_check_modules(ROCTRACERPROTO QUIET roctracer-proto)
         if(ROCTRACERPROTO_FOUND EQUAL 1)
-            pkg_get_variable(PROF_API_HEADER_PATH roctracer-proto prefix)
+            pkg_get_variable(PROF_API_HEADER_PATH roctracer-proto includedir)
         else()
             set(PROF_API_HEADER_PATH /opt/rocm/roctracer/include/ext)
         endif()