ARM: dts: msm: Enable touch controller firmware update on 8084

8084 devices can be equipped with old touch controller firmware. Such
firmware introduces impaired touch functionality. An upgrade to latest
firmware helps solve the problem.

Change-Id: I566cb4cd1149e300495fd65e1b0fcdedafeb090d
Signed-off-by: Chun Zhang <chunz@codeaurora.org>