msm: vidc: Session priority control range fix

The correct Min and Max values for Session Priority ctrl are 0 and 1.
Wrong assignment of values resulted in  V4L2 CTRL sanity check failure.

CRs-Fixed: 2199385
Change-Id: I01483ad15fc3f655ab1e482d02a244e1380af25b
Signed-off-by: Chinmay Sawarkar <chinmays@codeaurora.org>