COMPMID-2194: Refactor activation function macro in OpenCL. Change all activation calls to macro from activation_float_helpers.h

The different kernels now call the macro from
activation_float_helpers.h. activation_helpers.h is now removed.

Change-Id: I2e1314c6bc891809e88590d99e048072541cca14
Signed-off-by: Usama Arif <usama.arif@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1123
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/core/CL/cl_kernels/depthwise_convolution_quantized.cl b/src/core/CL/cl_kernels/depthwise_convolution_quantized.cl
index 8d145a0..13568b0 100644
--- a/src/core/CL/cl_kernels/depthwise_convolution_quantized.cl
+++ b/src/core/CL/cl_kernels/depthwise_convolution_quantized.cl
@@ -26,16 +26,16 @@
 
 #if defined(WEIGHTS_OFFSET) && defined(INPUT_OFFSET) && defined(K_OFFSET) && ((defined(OUTPUT_OFFSET) && defined(OUTPUT_MULTIPLIER) && defined(OUTPUT_SHIFT)) || defined(REAL_MULTIPLIER))
 
-#if defined(FUSED_ACTIVATION)
+#if defined(ACTIVATION_TYPE) && defined(CONST_0)
 #define DATA_TYPE uchar
 #ifndef VEC_SIZE
 #define VEC_SIZE 8
 #endif /* VEC_SIZE */
 #include "activation_layer_qa8.cl"
-#define ACTIVATION_FUNC(x) PERFORM_ACTIVATION_QA8(FUSED_ACTIVATION, x)
-#else /* defined(FUSED_ACTIVATION) */
+#define ACTIVATION_FUNC(x) PERFORM_ACTIVATION_QA8(ACTIVATION_TYPE, x)
+#else /* defined(ACTIVATION_TYPE) && defined(CONST_0) */
 #define ACTIVATION_FUNC(x) (x)
-#endif /* defined(FUSED_ACTIVATION) */
+#endif /* defined(ACTIVATION_TYPE) && defined(CONST_0) */
 
 #if defined(ARM_COMPUTE_OPENCL_DOT8_ENABLED) && defined(cl_arm_integer_dot_product_int8)
 #if defined(ARM_COMPUTE_OPENCL_DOT8_ACC_ENABLED) && defined(cl_arm_integer_dot_product_accumulate_int8)