Add secondaryId comparison for ProgramInfo

Add a hidden method stricEqual for ProgramSelector so that its
secondaryId can be compared when checking ProgramInfo equality.

Bug: 189775075
Test: m -j, atest android.hardware.radio.tests.functional
Test: atest com.android.server.broadcastradio.hal2
Change-Id: Ia9a297f946f295ea0c5e1d0efbb4ccae55c01b6f