Apply valid check for the satellite config data(plmns, services)

Bug: 331576454
Test: Manually verified if the config data is parsed well
Test: atest com.android.internal.telephony.configupdate (ab/I96600010259993081 PASS)

Change-Id: I6391efedae288db9c3cfa562396c44f2b06e7360
4 files changed