input: misc: hbtp_input: snapshot of driver from msm-4.4

Driver snapshot from msm-4.4 to port to msm-4.9

73b5daf input: misc: fix heap overflow issue in hbtp_input.c
92a038f input: misc: add condition check for ddic reset
c38f93d input: misc: hbtp_input: Add support for multiple AFE
ed17546 input: misc: hbtp-input: fix uninitialized usage of a variable
d7c55e4 input: misc: correct condition check for touch resolution
ac34679 input: misc: add support for scaling X and Y touch co-ordinates
de7fce6 input: misc: hbtp_input: Change regulator_set_optimum_mode
d420671 input: misc: hbtp_input: Add digital regulator support
8366ca7 input: hbtp_input: Port and add snapshot of changes from msm-3.10

Signed-off-by: Alex Sarraf <asarraf@codeaurora.org>
Change-Id: Id3e788fcbe4264c0e5df4962bf07f57084d3aa6e