drivers/input/touchscreen: add sweep2wake

Original code taken from mako, fixed for sgs4.

Signed-off-by: Dennis Rassmann <showp1984@gmail.com>
drivers/input/touchscreen/synaptics_i2c_rmi: s2w: improve is_single_touch()
The new approach avoids unnecessary loops by jumping out as soon as possible

Change-Id: I89dceccf87f35de20ea26425c813f1e7f9f5ff51
Signed-off-by: Dennis Rassmann <showp1984@gmail.com>
ondemand: tune default values
msm_mpdecision: increase boost frequencies and time

-also tune hotplug values
v1.0