glamor: Can work at depth >= 15 with current xserver Git master

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
11 jobs for glamor-depth-15 in 1 minute and 46 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #36619
xserver-1.13

00:00:33

passed #36620
xserver-1.14

00:00:32

passed #36621
xserver-1.15

00:00:34

passed #36622
xserver-1.16

00:00:34

passed #36623
xserver-1.17

00:00:32

passed #36624
xserver-1.18

00:00:31

passed #36625
xserver-1.18-clang

00:00:35

passed #36626
xserver-1.19

00:00:31

passed #36627
xserver-1.19-clang

00:00:34

passed #36617
xserver-1.20

00:00:43

passed #36618
xserver-1.20-clang

00:00:38