SWDEV-238517 - [dtest] Catch2 unit tests for device files.

Changes contain Device files under "hip/tests/src/runtimeApi/device" migrated to Catch2 and some additional device tests.

Change-Id: Ie88adc3c32c2079456b14e029cfc6c319b48d8f6

tests/catch/unit/device/hipGetDeviceCount.cc

@@ -0,0 +1,34 @@
+/*
+Copyright (c) 2021-Present Advanced Micro Devices, Inc. All rights reserved.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANNTY OF ANY KIND, EXPRESS OR
+IMPLIED, INNCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANNY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER INN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR INN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+/*
+ * Conformance test for checking functionality of
+ * hipError_t hipGetDeviceCount(int* count);
+ */
+
+#include <hip_test_common.hh>
+
+/**
+ * hipGetDeviceCount tests
+ * Scenario: Validates if &numDevices = nullptr returns error code.
+ */
+TEST_CASE("Unit_hipGetDeviceCount_NegTst") {
+  // Scenario1
+  REQUIRE_FALSE(hipGetDeviceCount(nullptr) == hipSuccess);
+}