Add hpd and link training status to AltModeData

Adds DisplayPort hpd and link training attributes within
DisplayPortAltModeData in USB HAL layer to more accurately
populate frameworks API fields. Within DisplayPortAltModeData are
new fields hpd and linkTrainingStatus.

Test: atest VtsAidlUsbTargetTest
Bug: 253534975
Change-Id: I3eb4b1527f457ba63bf127fbb14bd583ef6caf2f
5 files changed