SF: passing link training failure up to DM

This decouples the link_training_error case from all the other case
while using existing code to handle the error.

Flag: com.android.graphics.surfaceflinger.flags.display_config_error_hal
Bug: 374185760
Test: manual
Change-Id: Iaa6ec4501d3200a956f31ec5a76bfd337e3b5fa6