xkeyboard-config: Assign N-tilde to AltGr(+Shift)+N on latam layout.

This patches upstream "latam" XKB layout that's used for LatAm Spanish
input method on Chromium OS and Chrome OS.

BUG=chromium:1118215,b:165405014
TEST=emerged, deployed to kevin, then verified key mappings

Change-Id: Ia9dee91620343a22350c50df668a6ca0795ad764
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/overlays/chromiumos-overlay/+/2437344
Tested-by: Bao-Duy Tran <tranbaoduy@chromium.org>
Tested-by: David Vallet <dvallet@chromium.org>
Reviewed-by: Darren Shen <shend@chromium.org>
Reviewed-by: David Vallet <dvallet@chromium.org>
Reviewed-by: Nicholas Verne <nverne@chromium.org>
Commit-Queue: Bao-Duy Tran <tranbaoduy@chromium.org>
Commit-Queue: Nicholas Verne <nverne@chromium.org>
3 files changed