input: synaptics_dsx_i2c: pass correct QUP Instance to scm call

Pass the correct QUP instance to the scm call. This is required
for QUP ownership transfer to other subsystems to support the
secure touch usecase.

Change-Id: I3ff53544fc58db908669cddce155f786dde23c41
Signed-off-by: Himanshu Aggarwal <haggarwa@codeaurora.org>