Update on "[aoti-backend-consolidation 2/3] backend.py"

Differential Revision: [D85704977](https://our.internmc.facebook.com/intern/diff/D85704977/)

[ghstack-poisoned]

Author: Gasoonjia

backends/aoti/targets.bzl

@@ -1,6 +1,38 @@
 load("@fbsource//xplat/executorch/build:runtime_wrapper.bzl", "runtime")
 
 def define_common_targets():
+    runtime.python_library(
+        name = "aoti_partitioner",
+        srcs = [
+            "aoti_partitioner.py",
+        ],
+        visibility = [
+            "//executorch/...",
+        ],
+        deps = [
+            "//caffe2:torch",
+            "//executorch/exir/backend:partitioner",
+            "//executorch/exir/backend:utils",
+        ],
+    )
+
+    runtime.python_library(
+        name = "aoti_backend",
+        srcs = [
+            "aoti_backend.py",
+        ],
+        visibility = [
+            "//executorch/...",
+        ],
+        deps = [
+            "//caffe2:torch",
+            "//executorch/backends/aoti/passes:passes",
+            "//executorch/exir/_serialize:lib",
+            "//executorch/exir/backend:backend_details",
+            "//executorch/exir/backend:compile_spec_schema",
+        ],
+    )
+
     # AOTI common shims functionality
     runtime.cxx_library(
         name = "common_shims",

backends/cuda/TARGETS

@@ -11,11 +11,7 @@ runtime.python_library(
         "//executorch/...",
     ],
     deps = [
-        "//caffe2:torch",
-        "//executorch/backends/aoti/passes:passes",
-        "//executorch/exir/_serialize:lib",
-        "//executorch/exir/backend:backend_details",
-        "//executorch/exir/backend:compile_spec_schema",
+        "//executorch/backends/aoti:aoti_backend",
     ],
 )
 
@@ -29,7 +25,6 @@ runtime.python_library(
     ],
     deps = [
         "//caffe2:torch",
-        "//executorch/exir/backend:partitioner",
-        "//executorch/exir/backend:utils",
+        "//executorch/backends/aoti:aoti_partitioner",
     ],
 )