rocr: Fix Unintentional Integer Overflow

Its safer to have the integer literal explicitly be an unsigned long
in this expression as that's what the type of the errorCode variable
resolves to, preventing any overflow errors.

Signed-off-by: Sunday Clement <Sunday.Clement@amd.com>

runtime/hsa-runtime/core/runtime/amd_aql_queue.cpp

@@ -1181,7 +1181,7 @@ bool AqlQueue::ExceptionHandler(hsa_signal_value_t error_code, void* arg) {
   }
 
   for (auto& error : QueueErrors) {
-    if (error_code & (1 << (error.code - 1))) {
+    if (error_code & (1UL << (error.code - 1))) {
       errorCode = error.status;
       break;
     }