Check for AMDGPU_CREATE_PIXMAP_SCANOUT in amdgpu_glamor_create_pixmap

We must not call glamor_create_pixmap or fbCreatePixmap when it's set.

Closes: xorg/driver/xf86-video-amdgpu#21
12 jobs for amdgpu_glamor_create_pixmap-AMDGPU_CREATE_PIXMAP_SCANOUT in 1 minute and 19 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Docker Image
passed #4302228
container-build

00:00:18

 
  Build
passed #4302231
xserver-1.13

00:00:50

passed #4302232
xserver-1.14

00:00:51

passed #4302233
xserver-1.15

00:00:19

passed #4302234
xserver-1.16

00:00:51

passed #4302235
xserver-1.17

00:00:19

passed #4302236
xserver-1.18

00:00:49

passed #4302237
xserver-1.18-clang

00:00:23

passed #4302238
xserver-1.19

00:00:45

passed #4302239
xserver-1.19-clang

00:00:54

passed #4302229
xserver-1.20

00:01:01

passed #4302230
xserver-1.20-clang

00:00:54