Make //executorch/backends/apple/mps:mps build internally (#3641)

Summary:
Pull Request resolved: #3641

Was getting linker errors due to missing foundation framework, and need to deploy to recent macOS SDK.

Reviewed By: cccclai

Differential Revision: D57456696

fbshipit-source-id: a8b35d4c09d357bb6d68259a46e2dbcf5bbd98eb

Author: swolchok

backends/apple/mps/targets.bzl

@@ -56,11 +56,13 @@ def define_common_targets(is_xplat = False, platforms = []):
 
     if is_xplat:
         kwargs["fbobjc_frameworks"] = [
+            "Foundation",
             "Metal",
             "MetalPerformanceShaders",
             "MetalPerformanceShadersGraph",
         ]
         kwargs["fbobjc_ios_target_sdk_version"] = "17.0"
+        kwargs["fbobjc_macosx_target_sdk_version"] = "14.0"
         kwargs["platforms"] = platforms
 
     if runtime.is_oss or is_xplat: