fs: Support setting project inheritance flag
fs: Support setting project inheritance flag

This CL allows passthrough to set project inheritance flag through
cryptohome since setting project inheritance flag cannot be done in
user namespace.

BUG=b:226908517
TEST=atest android.appsecurity.cts.StorageHostTest

Change-Id: Icdde5164e2e6f8655fff28748f6bc18449ad36c3
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/crosvm/+/3585215
Reviewed-by: Ryo Hashimoto <7ea00519fdb4bf6e413a65300cdb4cc81913fc76@chromium.org>
Reviewed-by: Dennis Kempin <cd09796fb571bec2782819dbfd33307f65b1c778@google.com>
Tested-by: kokoro <2ac7b1f3fa578934c95181d4272be0d3bca00121@google.com>
Commit-Queue: Risan <61d6b291c976a8d76f68352fbdeca746c6b65c2e@chromium.org>

google/crosvm,google/crosvm,google/crosvm,google/crosvm