libdrm: NOTE! Default branch is now main

To update your local repository to use the new default branch, these
commands may help:

$ git fetch origin
$ git checkout master
$ git branch -m main
$ git branch --set-upstream-to=origin/main
$ git remote set-head origin --auto

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Dave Airlie <airlied@redhat.com>
6 jobs for main in 55 seconds (queued for 15 seconds)
Status Name Job ID Coverage
  Containers
passed debian #12429708

00:00:16

 
  Build
passed meson-aarch64 #12429711

00:00:19

passed meson-armhf #12429712

00:00:16

passed meson-i386 #12429710

00:00:15

passed meson-ppc64el #12429713

00:00:20

passed meson-x86_64 #12429709

00:00:17