Reland "[TFLite] Enable tflite in build for android and desktop."

This is a reland of a4df03d0

This addresses the revert by removing neon from the TFLite build
for chromeos.


Original change's description:
> [TFLite] Enable tflite in build for android and desktop.
>
> Bug: 1165517
> Binary-Size: Expected increase due to inclusion of TFLite in binary.
> Change-Id: I1c4c7b26f257c152d9477855ad32a77c0d30b85f
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2616241
> Reviewed-by: Andrew Grieve <agrieve@chromium.org>
> Reviewed-by: Tarun Bansal <tbansal@chromium.org>
> Reviewed-by: Sophie Chang <sophiechang@chromium.org>
> Commit-Queue: Michael Crouse <mcrouse@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#845026}

Cq-Include-Trybots: luci.chrome.try:chromeos-eve-chrome
Bug: 1165517
Binary-Size: Expected increase due to inclusion of TFLite in binary.
TBR: Andrew Grieve <agrieve@chromium.org>
TBR: Tarun Bansal <tbansal@chromium.org>
Change-Id: I4b6b21b4a23a0c6978bfbb57150e9bf81300059f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2639648
Commit-Queue: Michael Crouse <mcrouse@chromium.org>
Reviewed-by: Tarun Bansal <tbansal@chromium.org>
Cr-Commit-Position: refs/heads/master@{#845478}

chrome/services/machine_learning/features.gni

@@ -4,5 +4,6 @@
 
 declare_args() {
   # This enables build with TFLite library.
-  build_with_tflite_lib = false
+  # Currently only available for Desktop and Android.
+  build_with_tflite_lib = is_android || is_win || is_linux || is_mac || is_chromeos
 }

third_party/tflite/BUILD.gn

@@ -37,6 +37,12 @@ config("tflite_flags") {
   if (is_linux || is_chromeos_lacros) {
     defines += [ "GEMMLOWP_ALLOW_SLOW_SCALAR_FALLBACK" ]
   }
+
+  if (is_chromeos) {
+    # TODO(crbug.com/1168787): Determine if neon can be supported
+    # on chromeos builds.
+    defines += ["TF_LITE_DISABLE_X86_NEON"]
+  }
 }
 
 source_set("tflite_public_headers") {
@@ -53,7 +59,7 @@ source_set("tflite_public_headers") {
     "src/tensorflow/lite/graph_info.h",
     "src/tensorflow/lite/interpreter.h",
     "src/tensorflow/lite/interpreter_builder.h",
-    "src/tensorflow/lite/kernls/builtin_op_kernels.h",
+    "src/tensorflow/lite/kernels/builtin_op_kernels.h",
     "src/tensorflow/lite/model.h",
     "src/tensorflow/lite/model_builder.h",
     "src/tensorflow/lite/mutable_op_resolver.h",