Arm: dts: Change auto calibration delay for 8610 touch

Atmel touch controller on 8610 uses auto calibration
delay as 5 seconds. It makes controller to lose its
touches when they are on the panel for more than 5 secs.
Remove this limitation by programming proper value for
auto calibration.

CRs-fixed: 513505
Change-Id: Ib8050ebc1b72c6d57578a5201853307f6fee9be5
Signed-off-by: Mohan Pallaka <mpallaka@codeaurora.org>