Cycles: update Linux library search paths for upcoming ROCm 6

Pull Request: https://projects.blender.org/blender/blender/pulls/114178

extern/hipew/src/hipew.c

@@ -238,9 +238,13 @@ static int hipewHipInit(void) {
   /* Default installation path. */
   const char *hip_paths[] = {"", NULL};
 #else
+  /* ROCm 6 changes paths from /opt/rocm/hip/lib to /opt/rocm/lib, so
+   * search for libraries there. It still includes .so.5. */
   const char *hip_paths[] = {"libamdhip64.so.5",
+                             "/opt/rocm/lib/libamdhip64.so.5",
                              "/opt/rocm/hip/lib/libamdhip64.so.5",
                              "libamdhip64.so",
+                             "/opt/rocm/lib/libamdhip64.so",
                              "/opt/rocm/hip/lib/libamdhip64.so", NULL};
 #endif
   static int initialized = 0;