Gamescope currently uses 1024 VkFence objects to
synchronize CPU and GPU work. The NVIDIA Vulkan
driver currently creates a file descriptor for
each VKFence object created. To ensure there are
sufficient file descriptors, attempt to raise the
limit to 2048 file descriptors if it is currently
lower than that. Failure to raise the limit for
any reason is non-fatal, as the increased limit
is not required on some drivers.
