website: Add the gem5 boot camp event

Change-Id: If68cc301ea00b389705685c471f642a003687da0
Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5-website/+/57129
Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
Maintainer: Jason Lowe-Power <power.jg@gmail.com>
Tested-by: Jason Lowe-Power <power.jg@gmail.com>
2 files changed