Tweak capabilities when auto tz detection is off

Tweak user capabilities when automatic tz detection is off.

The capability to alter "geo detection enabled" can be "not applicable"
as it doesn't matter what the "geo detection enabled" setting is if
automatic detection is off.

Bug: 152746236
Test: atest services/tests/servicestests/src/com/android/server/timezonedetector/ConfigurationInternalTest.java
Change-Id: Ie8594cd1b96841421571bf6bdf43fa56b5e31d73