msm: mdss: increase timeout of first vsync

User space clients usually start to listen for vsync events a lot
earlier than the first update which triggers the timing generator.
Allow more time for the first update before timing out on waiting for
vsync.

Change-Id: I0a9f2e838b25459e87ca26b63467f16a936e6b9c
Signed-off-by: Adrian Salido-Moreno <adrianm@codeaurora.org>
1 file changed