sepolicy: gs101: allow usf_reg_edit to run

Provide necessary permissions to run usf_reg_edit from bugreport.

Bug: 187081112
Test: Run "adb bugreport <zip>" and verify it contains the output
      from "usf_reg_edit save -".
Change-Id: Iade132d93105d461d51273d19fe570d48cce46fe
3 files changed