Attention Handler base logic

Added base logic for the attention handler application (attn) as a starting point for further refinement. Attn will handle SBE vital, system checkstop and special attention events. These events will be handled through a combination local logic and external hardware and software interfaces.

Signed-off-by: Ben Tyner <ben.tyner@ibm.com>
Change-Id: I074fb86474761bf694644c71d93ede9c45673b79
5 files changed