Encode PRODUCT_CONFIG value into fatbinary

Change modifies the encoding entry in fatbinary for platforms.
If numbering in -device is used, the value PRODUCT_CONFIG will be encoded.
The functionality that returns the correct product config values has
also been added.

Related-To: NEO-6744
Signed-off-by: Daria Hinz <daria.hinz@intel.com>

shared/source/gen9/bxt/os_agnostic_hw_info_config_bxt.inl

@@ -0,0 +1,11 @@
+/*
+ * Copyright (C) 2022 Intel Corporation
+ *
+ * SPDX-License-Identifier: MIT
+ *
+ */
+
+template <>
+PRODUCT_CONFIG HwInfoConfigHw<gfxProduct>::getProductConfigFromHwInfo(const HardwareInfo &hwInfo) const {
+    return PRODUCT_CONFIG::BXT;
+}