add crosvm user and group

BUG=none
TEST=install crosvm ebuild and see crosvm user

Change-Id: I0620dd73461aeb5f55fa9d8941f023deb45ddddc
Reviewed-on: https://chromium-review.googlesource.com/733859
Commit-Ready: Stephen Barber <smbarber@chromium.org>
Tested-by: Stephen Barber <smbarber@chromium.org>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
diff --git a/profiles/base/accounts/group/crosvm b/profiles/base/accounts/group/crosvm
new file mode 100644
index 0000000..a50df7c
--- /dev/null
+++ b/profiles/base/accounts/group/crosvm
@@ -0,0 +1,3 @@
+group:crosvm
+gid:611
+users:crosvm
diff --git a/profiles/base/accounts/user/crosvm b/profiles/base/accounts/user/crosvm
new file mode 100644
index 0000000..6ff0b4f
--- /dev/null
+++ b/profiles/base/accounts/user/crosvm
@@ -0,0 +1,6 @@
+user:crosvm
+uid:611
+gid:611
+gecos:CrOS virtual machine monitor
+home:/dev/null
+shell:/bin/false