Enable quantized data types for  CpuElementwiseUnary on Armv7a

- Adding fallback functions neon_qasymm8_signed_elementwise_unary() and
  neon_qasymm8_elementwise_unary()
- They would be called in case target is not aarch64

Resolves: COMPMID-5994
Change-Id: Id0db1e7cb0fe92f1eaef0b3a9ed2bea01b3f2a15
Signed-off-by: Ramy Elgammal <ramy.elgammal@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/9416
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Viet-Hoa Do <viet-hoa.do@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Benchmark: Arm Jenkins <bsgcomp@arm.com>
diff --git a/filelist.json b/filelist.json
index c8e1ce0..01659f5 100644
--- a/filelist.json
+++ b/filelist.json
@@ -1427,8 +1427,14 @@
             "integer": ["src/cpu/kernels/elementwise_unary/generic/neon/integer.cpp"],
             "fp32": ["src/cpu/kernels/elementwise_unary/generic/neon/fp32.cpp"],
             "fp16": ["src/cpu/kernels/elementwise_unary/generic/neon/fp16.cpp"],
-            "qasymm8": ["src/cpu/kernels/elementwise_unary/generic/neon/q8.cpp"],
-            "qasymm8_signed": ["src/cpu/kernels/elementwise_unary/generic/neon/q8.cpp"]
+            "qasymm8": [
+              "src/cpu/kernels/elementwise_unary/generic/neon/q8.cpp",
+              "src/cpu/kernels/elementwise_unary/generic/neon/qasymm8.cpp"
+            ],
+            "qasymm8_signed": [
+              "src/cpu/kernels/elementwise_unary/generic/neon/q8.cpp",
+              "src/cpu/kernels/elementwise_unary/generic/neon/qasymm8_signed.cpp"
+            ]
           },
           "sve": {
             "common": ["src/cpu/kernels/elementwise_unary/generic/sve/impl.cpp" ],