This change adds new config for display driver, to reduce
debug memory usage. If this config is enabled, number of
entries for event logs and register dumps is reduced.
Currently this config is enabled only for TUI VM.
Change-Id: I31570d5743f3e8aa3fc079848553a452b8fccd18
Signed-off-by: Abhijit Kulkarni <kabhijit@codeaurora.org>