msm: camera: update pointers properly

fix the pointer content that is passed from module local variable to
function variable and  use memcpy function instead of copy_from_user for
compat condition.

Change-Id: Ifb1f0b6439a98cecaebca1606bf5eacc0af2e31e
Signed-off-by: Viswanadha Raju Thotakura <viswanad@codeaurora.org>