replace NO_PERMISSIONS with PERMISSION_NONE
As part of the effort to simplify the design of permission control between system server and netd, remove the NO_PERMISSIONS constant used by trafficController and share the constant PERMISSION_NONE with networkController instead. Bug: 128944261 Test: netd_integration_test netd_unit_test Change-Id: If3eb19adc15b6c23c95fc4b9bc699fd1a515e0ac Merged-In: If3eb19adc15b6c23c95fc4b9bc699fd1a515e0ac (cherry picked from commit 84f48cdf)
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