Add TelephonyManager.ALLOWED_NETWORK_TYPES_REASON_USER_RESTRICTION

This reason is intended to be passed to TelephonyManager.setAllowedNetworkTypesForReason
when 2g is disabled by a user restriction.

Bug: 247522864
Test: Included in future commits
Change-Id: I617e629163cfb63235055a4e9a75b0c2d6629ad5
2 files changed