Start RenderThread earlier to preload Vulkan/EGL drivers

This CL should fix application startup regression for Vulkan
detected by "Hermetic Startup: EmptyActivity" test.
EGL drivers are loaded in a temp thread to leave more time
in RenderThread for other work. Loading EGL drivers
on the RenderThread may cause a perf regression.

Test: Ran cold-dropcache-test test.
Bug: 122659224
Bug: 123361175
Change-Id: I8ca818e98fac196a41d079be15594caca5cb1bab
diff --git a/libs/hwui/renderthread/VulkanManager.h b/libs/hwui/renderthread/VulkanManager.h
index 9763686..95c9630 100644
--- a/libs/hwui/renderthread/VulkanManager.h
+++ b/libs/hwui/renderthread/VulkanManager.h
@@ -150,7 +150,7 @@
     // Returned pointers are owned by VulkanManager.
     VkFunctorInitParams getVkFunctorInitParams() const;
 
-    sk_sp<GrContext> createContext(GrContextOptions options);
+    sk_sp<GrContext> createContext(const GrContextOptions& options);
 
 private:
     // Sets up the VkInstance and VkDevice objects. Also fills out the passed in