input: touchscreen: Replace macros used inside the functions

Replace the macros that are used inside the driver function
with dtsi entries.
Remove hrtimer calls which is not being used in the current
driver code.

This patch is propagated from msm-3.10.
(commit: ae83c8954a2462789272078a7e2050ad3168b9be
input: touchscreen: Replace macros used inside the functions)

Change-Id: I29b9ea41df467d0092be8005733016843dc26f60
Signed-off-by: Shantanu Jain <shjain@codeaurora.org>