anv: print out perf permission warning only once

This warning is bothering a number of people and rightfully so.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Part-of: <!8955>
36 jobs for !8955 with review/anv-perf-warning in 6 minutes and 53 seconds (queued for 3 seconds)
detached
Status Job ID Name Coverage
  Sanity
passed #7217665
sanity

00:00:10

 
  Container
passed #7217668
aarch64
arm_build

00:00:20

passed #7217669
arm_test-base

00:00:16

passed #7217670
windows shell 1809 mesa
windows_build_vs2019

00:00:11

passed #7217666
x86_build-base

00:00:16

passed #7217667
x86_test-base

00:00:16

 
  Container 2
passed #7217678
android_build

00:00:19

passed #7217681
arm64_test

00:00:17

passed #7217682
armhf_test

00:00:15

passed #7217675
i386_build

00:00:17

passed #7217671
kernel+rootfs_amd64

00:01:26

passed #7217672
aarch64
kernel+rootfs_arm64

00:01:15

passed #7217673
aarch64
kernel+rootfs_armhf

00:00:13

passed #7217676
ppc64el_build

00:00:17

passed #7217677
s390x_build

00:00:19

passed #7217674
x86_build

00:00:16

passed #7217679
x86_test-gl

00:00:15

passed #7217680
x86_test-vk

00:00:17

 
  Meson X86 64
passed #7217688
meson-clang

00:02:52

passed #7217689
meson-clover

00:03:38

passed #7217685
meson-clover-testing

00:02:54

passed #7217755
meson-gallium

00:02:26

passed #7217687
meson-release

00:02:53

passed #7217683
meson-testing

00:02:56

passed #7217684
meson-testing-asan

00:03:32

passed #7217690
meson-vulkan

00:02:03

failed #7217686
meson-gallium

00:02:53

 
  Build Misc
passed #7217691
meson-android

00:01:56

passed #7217693
aarch64
meson-arm64

00:01:33

passed #7217694
aarch64
meson-arm64-build-test

00:01:27

passed #7217692
aarch64
meson-armhf

00:01:45

passed #7217696
meson-i386

00:02:52

passed #7217699
meson-mingw32-x86_64

00:01:39

passed #7217698
kvm
meson-ppc64el

00:01:39

passed #7217697
kvm
meson-s390x

00:02:25

failed #7217695
allowed to fail
scons-win64

00:03:17

 
Name Stage Failure
failed
scons-win64 Build Misc
max cache size                       5.0 GB
Uploading artifacts for failed job
Uploading artifacts...
WARNING: _build/meson-logs/*.txt: no matching files
build/*/config.log: found 2 matching files and directories

WARNING: shader-db: no matching files
Uploading artifacts as "archive" to coordinator... ok
id=7217695 responseStatus=201 Created token=qwt1F34R
Cleaning up file based variables
ERROR: Job failed: exit code 1