Fix a bug in queue submission
Fixes a bug in queue submission where the wrong amount of VkPipelineStageFlags were passed to vkQueueSubmit when the number of semaphores to wait on were more than 1.
Change-Id: Ic66e0c6a5e4f60659a0fb31c64c565820d4708a8 Signed-off-by: Normunds Rieksts normunds.rieksts@arm.com