[automerger skipped] Add ramdisk_available to init_first_stage's deps am: 2ec8157adc am: d911e3142c -s ours am: df0ad7da49 -s ours

am skip reason: Merged-In I8bdb8dda3417aa0ab01f22c4103a9d2e52baf529 with SHA-1 2ec8157adc is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/libcxx/+/15068060

Change-Id: Idd34bdc3fefead98df91687d817028f8e336887e