SWDEV-448163 - Fix doxygen warnings

This is a first batch of doxygen warnings fixes.

Signed-off-by: Sebastian Luzynski <Sebastian.Luzynski@amd.com>
Change-Id: Iba81d08b15738f80d86626113026e8a7e9cab42b

catch/performance/memcpy/hipMemcpy2DToArray.cc

@@ -125,3 +125,8 @@ TEST_CASE("Performance_hipMemcpy2DToArray_DeviceToDevice_EnablePeerAccess") {
   const auto width = GENERATE(4_KB, 8_KB, 16_KB);
   RunBenchmark(width, 32, hipMemcpyDeviceToDevice, true);
 }
+
+/**
+ * End doxygen group memcpy.
+ * @}
+ */