[SM07] Make combine subtype configurable from Settings

Note that enabling/disabling would not take effect until device
reboot. This will be addressed in follow-up patch.

Test: 1. atest NetworkStatsServieTest SettingsBackupTest
      2. adb shell settings put global netstats_combine_subtype_enabled 1|0
Bug: 146415925

Change-Id: Ic94da540afa479ed18f1b6fbda4ae3216c37476b
Merged-In: Ic94da540afa479ed18f1b6fbda4ae3216c37476b
(cherry picked from commit c4f77ac90bf2e48a655ad19b162fe74a23bf3fb0)
1 file changed
tree: 8b0a0a3f3be1b06785dc9e083a3baaaebeba7371
  1. core/
  2. services/
  3. tests/