video: cirrusfb: Remove incorrect checks
video: cirrusfb: Remove incorrect checks

'xoffset' and 'yoffset' are unsigned and hence cannot be less than 0.

Signed-off-by: Sachin Kamat <1c3b1584a6008857f36c03c58f657c0fc16fc09e@linaro.org>
Cc: Jeff Garzik <15f615bf7d20c2937c7eb5aa759110fd6768848c@redhat.com>
Signed-off-by: Tomi Valkeinen <e1ca4dbb8be1acaf20734fecd2da10ed1d46a9bb@ti.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs