Fix compiling error with gcc-10.3.0

On gcc-10.3.0 environment, hsa-runtime building is failed as below log:
compute/hsa/runtime/rocrtst/suites/negative/queue_validation.cc:470:18: error: conversion from ‘unsigned int’ to ‘uint16_t’ {aka ‘short unsigned int’} changes value from ‘4294967295’ to ‘65535’ [-Werror=overflow]
  470 |     aql().header |=  0xFFFFFFFF << HSA_PACKET_HEADER_TYPE;
      |     ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1plus: all warnings being treated as errors
make[2]: *** [CMakeFiles/rocrtst64.dir/build.make:339: CMakeFiles/rocrtst64.dir/home/aaliu/work/compute/hsa/runtime/rocrtst/suites/negative/queue_validation.cc.o] Error 1
make[2]: *** Waiting for unfinished jobs....

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Change-Id: I95fe72030368abc211b4b97b5a7ba00b5e094730

rocrtst/suites/negative/queue_validation.cc

@@ -467,7 +467,7 @@ void QueueValidation::QueueValidationForInvalidPacket(hsa_agent_t cpuAgent,
     rocrtst::WriteAQLToQueueLoc(queue[ii], index, &aql());
     // setting the invalid packet type
     aql().header = HSA_PACKET_TYPE_KERNEL_DISPATCH;
-    aql().header |=  0xFFFFFFFF << HSA_PACKET_HEADER_TYPE;
+    aql().header |=  0xFFFF << HSA_PACKET_HEADER_TYPE;
     aql().kernel_object = kernel_object();
 
     void* q_base = queue[ii]->base_address;