Add dependency on libdl_android

platform private symbols have been moved to libdl_android.so
since they are not intended to be accessible from apps.

Test: make
Change-Id: I34935206e078a064841fe00b293f24df358e50ad
diff --git a/vulkan/libvulkan/Android.bp b/vulkan/libvulkan/Android.bp
index 206c8eb..71a120a 100644
--- a/vulkan/libvulkan/Android.bp
+++ b/vulkan/libvulkan/Android.bp
@@ -76,6 +76,7 @@
         "libhardware",
         "libsync",
         "libbase",
+        "libdl_android",
         "libhidlbase",
         "libhidltransport",
         "liblog",