staging:media:davinci_vpfe: Fixed comparisons with constants warnings

WARNING: Comparisons should place the constant on the right side of the
test

Fixed warnings by moving the constants to the right side of the comparisons.

Signed-off-by: Thaissa Falbo <thaissa.falbo@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>