dma-buf/fence: don't wait when specified timeout is zero
dma-buf/fence: don't wait when specified timeout is zero

When specified timeout is zero for fence_wait_timeout, just check if the fence
is signaled or not without wait.

Signed-off-by: Jammy Zhou <302958b3037f7fa601b11152090f51ed851f29fd@amd.com>
Reviewed-by: Christian König <c7ea837d7a46effe4232b086213468b8b31643bf@amd.com>
Reviewed-By: Maarten Lankhorst <743c2818a341d71b99ed2b566f9f80c2fc288f93@canonical.com>
Signed-off-by: Sumit Semwal <d6930da0d649c01d063dcca4d796c2ac2cbb68ba@linaro.org>

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