Add explicit dependencies on jni_headers

Preparation for removing implicit include paths for jni.h from soong.

Bug: 152482542
Test: m checkbuild
Change-Id: Icc5b7e1d33a0e55cee746b7a7089b020fc3f2d82
diff --git a/tests/signature/dex-checker/Android.bp b/tests/signature/dex-checker/Android.bp
index 44c8571..1e4f649 100644
--- a/tests/signature/dex-checker/Android.bp
+++ b/tests/signature/dex-checker/Android.bp
@@ -20,6 +20,7 @@
         "-Wall",
         "-Werror",
     ],
+    header_libs: ["jni_headers"],
     sdk_version: "current",
     stl: "c++_static",
 }