Decouple CpuActivationKernel

1- Data types were already decoupled. This commit arrange the folder struct of the activation kernel.
2- Refactor NEON CpuActivationKernel for floating-point cases.

Resolves COMPMID-4636
Change-Id: Ia4527244c84260dce1dd1d4bd4a9e3cfe2486d85
Signed-off-by: Dana Zlotnik <dana.zlotnik@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/6739
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Giorgio Arena <giorgio.arena@arm.com>
diff --git a/src/cpu/kernels/activation/list.h b/src/cpu/kernels/activation/list.h
index 409d025..bf9aa0f 100644
--- a/src/cpu/kernels/activation/list.h
+++ b/src/cpu/kernels/activation/list.h
@@ -31,16 +31,16 @@
 #define DECLARE_ACTIVATION_KERNEL(func_name) \
     void func_name(const ITensor *src, ITensor *dst, const ActivationLayerInfo &act_info, const Window &window)
 
-DECLARE_ACTIVATION_KERNEL(qasymm8_neon_activation);
-DECLARE_ACTIVATION_KERNEL(qasymm8_sve_activation);
-DECLARE_ACTIVATION_KERNEL(qasymm8_signed_neon_activation);
-DECLARE_ACTIVATION_KERNEL(qasymm8_signed_sve_activation);
-DECLARE_ACTIVATION_KERNEL(qsymm16_neon_activation);
-DECLARE_ACTIVATION_KERNEL(qsymm16_sve_activation);
-DECLARE_ACTIVATION_KERNEL(fp16_neon_activation);
-DECLARE_ACTIVATION_KERNEL(fp16_sve_activation);
-DECLARE_ACTIVATION_KERNEL(fp32_neon_activation);
-DECLARE_ACTIVATION_KERNEL(fp32_sve_activation);
+DECLARE_ACTIVATION_KERNEL(neon_qasymm8_activation);
+DECLARE_ACTIVATION_KERNEL(sve2_qasymm8_activation);
+DECLARE_ACTIVATION_KERNEL(neon_qasymm8_signed_activation);
+DECLARE_ACTIVATION_KERNEL(sve2_qasymm8_signed_activation);
+DECLARE_ACTIVATION_KERNEL(neon_qsymm16_activation);
+DECLARE_ACTIVATION_KERNEL(sve2_qsymm16_activation);
+DECLARE_ACTIVATION_KERNEL(sve_fp16_activation);
+DECLARE_ACTIVATION_KERNEL(sve_fp32_activation);
+DECLARE_ACTIVATION_KERNEL(neon_fp16_activation);
+DECLARE_ACTIVATION_KERNEL(neon_fp32_activation);
 
 #undef DECLARE_ACTIVATION_KERNEL
 } // namespace cpu