Search for system libvulkan on CrOS Currently, ANGLE searches in the "module" directory for libvulkan during init on CrOS. The library doesn't exist at this location (/opt/google/chrome/libvulkan.so), and we should instead just call dlopen(libvulkan.so) to search the system library paths. Bug: b/292249282 Change-Id: I7ab4803fe294e69f0ab8533ebc2fa43e25f189eb Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4716242 Reviewed-by: Geoff Lang <geofflang@chromium.org> Commit-Queue: Brian Ho <hob@chromium.org>