Fix flaky test BinderTest#NetworkSetProtectAllowDeny

It is caused by conflicted uid which has already been used by system.
Use maximum reserved appId for applications to avoid conflict with
existing. Also clear uid permission before querying.

error log:
05-24 22:19:37.561  1287  1577 I WifiService: startScan uid=10114
05-24 22:19:41.632   755  4865 I netd    : networkSetProtectAllow(10114) <0.09ms>
05-24 22:19:41.632   755  4865 I netd    : networkCanProtect(10114) -> {"true"} <0.12ms>
05-24 22:19:41.633   755  4865 I netd    : networkSetProtectDeny(10114) <0.09ms>
05-24 22:19:41.633  1728  1728 I Finsky  : [2] pke.a(46): Running job: 1-1337
05-24 22:19:41.633   755  4865 I netd    : networkCanProtect(10114) -> {"true"} <0.13ms>

Bug: 133818065
Test: cd system/netd && atest
Change-Id: I557a7d75c519209a3bb020514f596fe5df84490f