Add cronista user and group.

BUG=b:173128950
TEST=CQ passes

Change-Id: I1f6e78e15ac2d1a8dde741ef07b7368e354ceb83
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/2643239
Reviewed-by: Mike Frysinger <vapier@chromium.org>
Tested-by: Allen Webb <allenwebb@google.com>
Commit-Queue: Allen Webb <allenwebb@google.com>
diff --git a/profiles/base/accounts/group/cronista b/profiles/base/accounts/group/cronista
new file mode 100644
index 0000000..33ac59a
--- /dev/null
+++ b/profiles/base/accounts/group/cronista
@@ -0,0 +1,3 @@
+group:cronista
+gid:20170
+users:cronista
diff --git a/profiles/base/accounts/user/cronista b/profiles/base/accounts/user/cronista
new file mode 100644
index 0000000..dd102d5
--- /dev/null
+++ b/profiles/base/accounts/user/cronista
@@ -0,0 +1,6 @@
+user:cronista
+uid:20170
+gid:20170
+gecos:Authenticated log and storage daemon
+home:/dev/null
+shell:/bin/false