Update android cross file
commit e07e8a6c:
cross-files/android: cpu is aarch64, not arm64
Matching the value in glib:
https://gitlab.gnome.org/GNOME/glib/merge_requests/1376#note_719427
commit c25e92a9:
cross-files/android: Update paths and args for latest NDK
-fuse-ld=gold was always needed, but we missed it while adding this.
The rest are new in NDK r21.