Update skiboot stable tree rules
Update skiboot stable tree rules

We have new mailing list (skiboot-stable@lists.ozlabs.org) for handling
stable trees!

Now onwards to submit patches to stable tree, one should send patches to
skiboot-stable@lists.ozlabs.org mailing list with subject prefix
[PATH <stable-version>] -OR- CC skiboot-stable@lists.ozlabs.org mailing
list while sending patches to upstream mailing list (skiboot@lists.ozlabs.org).

This will remove the requirement to do the --suppress-cc OR other related
--no-cc-* options from git-send-email to remove "CC" list.

Signed-off-by: Vasant Hegde <a6d753843573f7bfed5075c1e875b0be8007a0ab@linux.vnet.ibm.com>
Signed-off-by: Stewart Smith <ec31ab75ddf977353c8f660f92ea8b23f64aef25@linux.ibm.com>

open-power/skiboot,legoater/skiboot,shenki/skiboot,shenki/skiboot,legoater/skiboot,shenki/skiboot,open-power/skiboot,qemu/skiboot,stewart-ibm/skiboot,stewart-ibm/skiboot,shenki/skiboot,legoater/skiboot,open-power/skiboot,shenki/skiboot,stewart-ibm/skiboot,qemu/skiboot,open-power/skiboot,qemu/skiboot,qemu/skiboot,open-power/skiboot,qemu/skiboot,legoater/skiboot,legoater/skiboot