[fuchsia] Fix Zircon library dependency.

This CL is required to fix a reference to the Zircon VDSO (i.e.
libzircon.so) into a proper target dependency. For more context, see
https://fuchsia-review.googlesource.com/c/fuchsia/+/433557 and the
associated bug at https://fxbug.dev/60613

Change-Id: Id5b37aa75ff0e969c01f1b1decaf228cfea09051
diff --git a/BUILD.gn b/BUILD.gn
index 76bf904..34219cd 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -135,12 +135,11 @@
       "//third_party/Vulkan-Headers/include",
     ]
 
-    libs = [ "zircon" ]
-
     deps = [
       "//sdk/fidl/fuchsia.hardware.goldfish:fuchsia.hardware.goldfish_llcpp",
       "//sdk/fidl/fuchsia.logger:fuchsia.logger_llcpp",
       "//sdk/fidl/fuchsia.sysmem:fuchsia.sysmem_llcpp",
+      "//src/zircon/lib/zircon",
       "//zircon/public/lib/zx",
       "//zircon/system/ulib/syslog:syslog-static",
       "//zircon/system/ulib/trace:trace-with-static-engine",