Move DWC native heuristic into the heuristic folder

- Move the DWC native heuristic from CLDepthwiseConvolutionLayer to
heuristic/
- Update the heuristic for Arm® Mali™-G77. Use a smaller block size
(4x2) for Fp16
- Call the new heuristic in GpuDepthwiseConv2d

Resolves COMPMID-5798

Signed-off-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Change-Id: I6bfd30cea76bea2e98202a7a5c1d51709f3382a4
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/8889
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Gunes Bayir <gunes.bayir@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Benchmark: Arm Jenkins <bsgcomp@arm.com>
diff --git a/Android.bp b/Android.bp
index bf6ee14..ec7bccd 100644
--- a/Android.bp
+++ b/Android.bp
@@ -957,6 +957,9 @@
         "src/runtime/Utils.cpp",
         "src/runtime/heuristics/direct_conv/ClDirectConvDefaultConfigBifrost.cpp",
         "src/runtime/heuristics/direct_conv/ClDirectConvDefaultConfigValhall.cpp",
+        "src/runtime/heuristics/dwc_native/ClDWCNativeDefaultConfigBifrost.cpp",
+        "src/runtime/heuristics/dwc_native/ClDWCNativeDefaultConfigValhall.cpp",
+        "src/runtime/heuristics/dwc_native/ClDWCNativeHeuristicsHelpers.cpp",
         "src/runtime/heuristics/indirect_conv/ClIndirectConvDefaultConfigValhall.cpp",
         "utils/CommonGraphOptions.cpp",
         "utils/GraphUtils.cpp",