Add dummy vndk library libmkbootimg to enable abi checks on boot_img_hdr.

Bug: 74763691

Test: m -j libmkbootimg creates libmkbootimg.so.lsdump.

Test: make -j64

Merged-In: I8d716c560467aaf090f4f7ee9cfbc53a9405f05d
Change-Id: I8d716c560467aaf090f4f7ee9cfbc53a9405f05d
(cherry picked from commit 4cc755dce527434dc4b79c1734185faeab084bac)
diff --git a/init/Android.bp b/init/Android.bp
index 31c8efb..70a4ac6 100644
--- a/init/Android.bp
+++ b/init/Android.bp
@@ -127,9 +127,7 @@
         "watchdogd.cpp",
     ],
     whole_static_libs: ["libcap"],
-    include_dirs: [
-        "system/core/mkbootimg",
-    ],
+    header_libs: ["bootimg_headers"],
     proto: {
         type: "lite",
         export_proto_headers: true,