Create pstore-access group with oobe_config_restore

Gives oobe_config_restore access to /sys/fs/pstore.

BUG=chromium:1212958
TEST=Run rollback on device together with other changes.

Cq-Depend: 3020561
Change-Id: Icddb3606dd541195f6b80e33a3f4616b7d8badbf
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/eclass-overlay/+/3009454
Commit-Queue: Miriam Polzer <mpolzer@google.com>
Tested-by: Miriam Polzer <mpolzer@google.com>
Reviewed-by: Mike Frysinger <vapier@chromium.org>
diff --git a/profiles/base/accounts/group/pstore-access b/profiles/base/accounts/group/pstore-access
new file mode 100644
index 0000000..b11e3b5
--- /dev/null
+++ b/profiles/base/accounts/group/pstore-access
@@ -0,0 +1,3 @@
+group:pstore-access
+gid:422
+users:debugd,oobe_config_restore