Revert "hikey960: Remove hifi dsp support."

This reverts commit 1d7e5889cd761a9eaecb130c52582d2b0707a08d.

Reason for revert: previous commit broke build_test target, b/219798815

Change-Id: If678459053b79b81de27a1b7d514cc0c6101d97d
diff --git a/hifi/xaf/host-apf/utest/include/xaf-utils-test.h b/hifi/xaf/host-apf/utest/include/xaf-utils-test.h
new file mode 100644
index 0000000..e6c2ce0
--- /dev/null
+++ b/hifi/xaf/host-apf/utest/include/xaf-utils-test.h
@@ -0,0 +1,37 @@
+/*******************************************************************************
+* Copyright (C) 2018 Cadence Design Systems, Inc.
+* 
+* Permission is hereby granted, free of charge, to any person obtaining
+* a copy of this software and associated documentation files (the
+* "Software"), to use this Software with Cadence processor cores only and 
+* not with any other processors and platforms, 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 WARRANTY OF ANY KIND,
+* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+******************************************************************************/
+
+#include <stdio.h>
+
+#include "xf.h"
+#include "xaf-api.h"
+#include "xa_type_def.h"
+
+#include "xaf-mem.h"
+
+/* exported global variables */
+extern int audio_frmwk_buf_size;
+extern int audio_comp_buf_size;
+
+int print_mem_mcps_info(mem_obj_t* mem_handle, int num_comp);
+int print_banner(char *app_name);
+