Invoke Vulkan initialize earlier

Invoke VulkanManager::initialize as soon as the RenderThread is
started. This reduces time spent in the first call to
CanvasContext::setSurface by ~20ms.

Test: Ran Hermetic Startup: EmptyActivity
BUg: 122659224
Change-Id: Ifa160b0b0bbe43adc82f061fac51082878164804
1 file changed