SWDEV-514141 - Fix zero clock rate issues (#4)

1.Remove clock functions from some tests that don't need them.
2.In some memory pool tests and coherency tests, timer-based kernel
delay isn't reliable, use pinned host based notification instead.
3.Add CHECK_PCIE_ATOMICS_SUPPORT before some tests.
4.catch/unit/memory/hipMemoryAllocateCoherent.cc is removed
as it is useless and originally excluded in building.
5.Some tests can still pass even if clock rate =0, thus they
  will be kept as is.
6.Some logic and format improvement in some tests.

Change-Id: I6b3c6bf54c61cffd45cd6f17c75998f751b75725

catch/unit/clock/hipClockCheck.cc

@@ -120,7 +120,10 @@ TEST_CASE("Unit_hipClock64_Positive_Basic") {
   HIP_CHECK(hipSetDevice(0));
   int clock_rate = 0;  // in kHz
   HIP_CHECK(hipDeviceGetAttribute(&clock_rate, hipDeviceAttributeClockRate, 0));
-
+  if (clock_rate == 0) {
+    HipTest::HIP_SKIP_TEST("hipDeviceAttributeClockRate returns 0");
+    return;
+  }
   if (IsGfx11()) {
     HipTest::HIP_SKIP_TEST("Issue with clock64() function on gfx11 devices!");
     return;
@@ -149,7 +152,10 @@ TEST_CASE("Unit_hipClock_Positive_Basic") {
   HIP_CHECK(hipSetDevice(0));
   int clock_rate = 0;  // in kHz
   HIP_CHECK(hipDeviceGetAttribute(&clock_rate, hipDeviceAttributeClockRate, 0));
-
+  if (clock_rate == 0) {
+    HipTest::HIP_SKIP_TEST("hipDeviceAttributeClockRate returns 0");
+    return;
+  }
   if (IsGfx11()) {
     HipTest::HIP_SKIP_TEST("Issue with clock() function on gfx11 devices!");
     return;
@@ -180,7 +186,7 @@ TEST_CASE("Unit_hipWallClock64_Positive_Basic") {
   HIP_CHECK(hipDeviceGetAttribute(&clock_rate, hipDeviceAttributeWallClockRate, 0));
 
   if (!clock_rate) {
-    HipTest::HIP_SKIP_TEST("hipDeviceAttributeWallClockRate is not supported");
+    HipTest::HIP_SKIP_TEST("hipDeviceAttributeWallClockRate returns 0");
     return;
   }