use static const instead of #define (DIS)ALLOW am: a09c2bbe49 am: f142ddf4b1 am: 636993817d am: a59cb2ce2b

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2777123

Change-Id: I5ee9dab87b18ef349258b0ab6eefc38c4b7aee60
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>