Add architecture agnostic namespace to be used in Zephyr

Signed-off-by: Yuval Peress <peress@google.com>

Include/cmsis_dsp_math.h

@@ -0,0 +1,17 @@
+/*******************************************************************************
+ * @file   cmsis_dsp_math.h
+ * @brief  Architecture agnostic naming for arm_math.h
+ * @see    arm_math.h for defails
+ ******************************************************************************/
+/* Copyright (c) 2022 Google Inc
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef INCLUDE_CMSIS_DSP_MATH_H_
+#define INCLUDE_CMSIS_DSP_MATH_H_
+
+#include "arm_math.h"
+
+#include "cmsis_dsp_math_types.h"
+
+#endif //INCLUDE_CMSIS_DSP_MATH_H_

Include/cmsis_dsp_math_types.h

@@ -0,0 +1,18 @@
+/* Copyright (c) 2022 Google Inc
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#ifndef INCLUDE_CMSIS_DSP_MATH_TYPES_H_
+#define INCLUDE_CMSIS_DSP_MATH_TYPES_H_
+
+#include "arm_math_types.h"
+
+#define CMSIS_MATH_SUCCESS ARM_MATH_SUCCESS
+#define CMSIS_MATH_ARGUMENT_ERROR ARM_MATH_ARGUMENT_ERROR
+#define CMSIS_MATH_LENGTH_ERROR ARM_MATH_LENGTH_ERROR
+#define CMSIS_MATH_SIZE_MISMATCH ARM_MATH_SIZE_MISMATH
+#define CMSIS_MATH_MANIF ARM_MATH_MANIF
+#define CMSIS_MATH_TEST_FAILURE ARM_MATH_TEST_FAILURE
+#define CMSIS_MATH_DECOMPOSITION_FAILURE ARM_MATH_DECOMPOSITION_FAILURE
+
+#endif /* INCLUDE_CMSIS_DSP_MATH_TYPES_H_ */

Include/dsp/basic_math_functions.h

@@ -56,6 +56,12 @@ extern "C"
         q7_t * pDst,
         uint32_t blockSize);
 
+/**
+ * @brief Architecture agnostic naming
+ * @see arm_mult_q7
+ */
+#define cmsis_mult_q7 arm_mult_q7
+
 
   /**
    * @brief Q15 vector multiplication.