Use header module bpf_syscall_wrappers

Use the versioned header library instead of just including
the header files.

Test: atest BpfMapTest
Change-Id: Icf23dcdc051a4ead6a7c6e925159cdc27f49eac2
diff --git a/Tethering/Android.bp b/Tethering/Android.bp
index 5edcfe3..761e098 100644
--- a/Tethering/Android.bp
+++ b/Tethering/Android.bp
@@ -60,10 +60,7 @@
         "com.android.tethering",
     ],
     min_sdk_version: "30",
-    include_dirs: [
-        // TODO: use the libbpf_android_headers instead of just including the header files.
-        "system/bpf/libbpf_android/include/",
-    ],
+    header_libs: ["bpf_syscall_wrappers"],
     srcs: [
         "jni/*.cpp",
     ],