[SYCL][PI][L0] Fix dynamic batching unit test (#3270)

Fixes problem with level zero plugin dynamic batching unit test
that was reported in #3257.

Author: kbsmith-intel

sycl/test/on-device/plugins/level_zero_dynamic_batch_test.cpp

@@ -2,23 +2,24 @@
 
 // RUN: %clangxx -fsycl -fsycl-targets=%sycl_triple  %s -o %t.out
 
-// Check that dynamic batching increases batch size
-// RUN: env SYCL_PI_TRACE=2 ZE_DEBUG=1 %GPU_RUN_PLACEHOLDER %t.out 2>&1 | FileCheck --check-prefixes=CKALL,CKDYNUP %s
+// Check that dynamic batching raises/lowers batch size
+// RUN: env SYCL_PI_TRACE=2 ZE_DEBUG=1 %GPU_RUN_PLACEHOLDER %t.out 2>&1 | FileCheck --check-prefixes=CKALL,CKDYN %s
 
 // level_zero_dynamic_batch_test.cpp
 //
-// This tests the level zero plugin's kernel dyanmic batch size adjustment
+// This tests the level zero plugin's kernel dynamic batch size adjustment
 // code.
 // It starts out by enqueing 40 kernels before it does a wait, and it does
 // this 5 times.  That should cause the dynamic batch size adjustment to
-// raise the batch size up several times.
+// raise the batch size up 3 times.
 //
 // Then the test starts enqueueing only 4 kernels before doing a wait, and
-// it does that 5 times as well.  That should cause the batch size to
-// be lowered, just once to be less than 4.
+// it does that 20 times.  That should cause the batch size to
+// be lowered to be less than 4.
 //
 // CKDYN: Raising QueueBatchSize to 5
 // CKDYN: Raising QueueBatchSize to 6
+// CKDYN: Raising QueueBatchSize to 7
 // CKDYN-NOT: Raising QueueBatchSize
 // CKALL: Test Pass
 // CKALL: Test Pass
@@ -165,7 +166,7 @@ int main(int argc, char *argv[]) {
   validate(Y1, Z7, M * N);
   validate(Y1, Z8, M * N);
 
-  for (size_t i = 0; i < 5; i++) {
+  for (size_t i = 0; i < 20; i++) {
     q.submit([&](sycl::handler &h) {
       h.parallel_for<class u32_copy9>(sycl::range<2>{M, N},
                                       [=](sycl::id<2> it) {