datadir: Use bundle mechanism

softmmu/datadir.c had its own implementation to find files in the
build tree, but now bundle mechanism provides the unified
implementation which works for datadir and the other files.

Signed-off-by: Akihiko Odaki <akihiko.odaki@gmail.com>
Message-Id: <20220624145039.49929-4-akihiko.odaki@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
diff --git a/pc-bios/meson.build b/pc-bios/meson.build
index 41ba1c0..388e0db 100644
--- a/pc-bios/meson.build
+++ b/pc-bios/meson.build
@@ -85,16 +85,9 @@
   'vof-nvram.bin',
 ]
 
-ln_s = [find_program('ln', required: true), '-sf']
-foreach f : blobs
-  roms += custom_target(f,
-                build_by_default: have_system,
-                output: f,
-                input: files('meson.build'),            # dummy input
-                install: get_option('install_blobs'),
-                install_dir: qemu_datadir,
-                command: [ ln_s, meson.project_source_root() / 'pc-bios' / f, '@OUTPUT@' ])
-endforeach
+if get_option('install_blobs')
+  install_data(blobs, install_dir: qemu_datadir)
+endif
 
 subdir('descriptors')
 subdir('keymaps')