SWDEV-307185 - Move memory allocation under device layer

It can be too early to allocate memory at the begining of
Device::create() under PAL

Change-Id: I4bd76db7be3f6fb246243ea68022d8b0f860471d

rocclr/device/rocm/rocdevice.cpp

@@ -784,6 +784,12 @@ bool Device::create() {
     }
   }
 
+  if (amd::IS_HIP) {
+    // Allocate initial heap for device memory allocator
+    static constexpr size_t HeapBufferSize = 1024 * Ki;
+    heap_buffer_ = createMemory(HeapBufferSize);
+  }
+
   return true;
 }