Merge "vulkan: avoid waiting for service.sf.present_timestamp creation"

    // conditionally add VK_GOOGLE_display_timing if present timestamps are

    // supported by the driver:

    const std::string timestamp_property("service.sf.present_timestamp");

    android::base::WaitForPropertyCreation(timestamp_property);

    if (android::base::GetBoolProperty(timestamp_property, true)) {

    if (android::base::GetBoolProperty("service.sf.present_timestamp", false)) {

        loader_extensions.push_back({

                VK_GOOGLE_DISPLAY_TIMING_EXTENSION_NAME,

                VK_GOOGLE_DISPLAY_TIMING_SPEC_VERSION});