Improve DAB support in broadcast radio AIDL HAL

SID in DAB_SID_EXT was extended to 32-bit to support DMB radio.
The documatation for DAB program selector and program info was
updated to make a DAB station is uniquely specified. AIDL HAL
definition requirement for identifier, program selector and info
was enforced in the AIDL utils class. The default implementation
and VTS were also updated correspondingly.

Bug: 261912181
Test: atest VtsHalBroadcastradioAidlTargetTest
Change-Id: Ic420955340f0c77370106e736410d7125536e62d