some tweaks to intelliplug
Input: add MSC_ACTIVITY event for reporting early input activity

Input devices which depends on host processor for converting raw
samples to input event needs to report early event so that CPU
frequency governor can act to boost process of converting raw
samples to input event data. Direct touch technology based
device is an example where computation happens on CPU instead
of dedicated controller.

Bug 1229219

Change-Id: I404fb30e2a05f8092d194825488db017e7e935af
Signed-off-by: Yogish Kulkarni <yogishk@nvidia.com>
Reviewed-on: http://git-master/r/196737
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
input: touch: use MSC activity (nvidia)