Update on "[Executorch] Make apple take accelerate path for blas"

For some reason fbobjc_exported_preprocessor_flags does not seems to work. Thus
taking 'select' route which seems to work.

Differential Revision: [D64499608](https://our.internmc.facebook.com/intern/diff/D64499608/)

[ghstack-poisoned]

Author: kimishpatel

kernels/optimized/lib_defs.bzl

@@ -43,6 +43,18 @@ def get_vec_fbcode_preprocessor_flags():
     ]
     return preprocessor_flags
 
+def get_apple_framework_deps():
+    # various ovr_configs are not available in oss
+    if not runtime.is_oss:
+      frameworks = select({
+          "DEFAULT": [],
+          "ovr_config//os:iphoneos": ["$SDKROOT/System/Library/Frameworks/Accelerate.framework"],
+          "ovr_config//os:macos-arm64": ["$SDKROOT/System/Library/Frameworks/Accelerate.framework"],
+          "ovr_config//os:macos-x86_64": ["$SDKROOT/System/Library/Frameworks/Accelerate.framework"],
+      })
+      return frameworks
+    return ["Accelerate"]
+
 def get_preprocessor_flags():
     # various ovr_configs are not available in oss
     preprocessor_flags = select({
@@ -182,9 +194,7 @@ def define_libs():
                 "-DET_BUILD_WITH_BLAS",
                 "-DET_BUILD_FOR_APPLE",
             ],
-            fbobjc_frameworks = [
-                "Accelerate",
-            ],
+            frameworks = get_apple_framework_deps(),
             deps = select({
                 ":linux-x86_64": [mkl_dep] if not runtime.is_oss else [],
                 "DEFAULT": [],