Reduce the set_allowed_network_type to one time

Android S has three times set_allowed_network_type after bootup.
If those network types are different values, it causes attach
issue in modem.
Reduce set_allowed_network_type to one time, and framework set
allowed network type after carrier config changed.

Bug: 190874388
Bug: 187773531
Test: atest CarrierServiceStateTrackerTest
atest android.telephony.cts.TelephonyCallbackTest
atest cts/tests/tests/telephony/current/src/android/telephony/cts/TelephonyManagerTest.java#testSetAllowedNetworkTypesForReason
atest cts/tests/tests/telephony/current/src/android/telephony/cts/TelephonyManagerTest.java#testSetAllowedNetworkTypesForReason_moreReason
atest -c com.android.internal.telephony

Change-Id: I17dc6a2953ef8f12c211565813f2953f7e83a472
Merged-In: I17dc6a2953ef8f12c211565813f2953f7e83a472