defconfig: enable dbgui driver on msmthorium

Enable debugUI driver on msmthorium that allows capturing data on certain
triggers as well as send the captured data as trace output. This will
help with debugging issues.

Change-Id: I87059dda9f6efeafadd9f01edf417b9891e7f573
Signed-off-by: Xiaogang Cui <xiaogang@codeaurora.org>