zink: fix ZINK_MAX_DESCRIPTORS_PER_TYPE to stop exploding the stack

this isn't the max per type, it's the max that can be used for a type,
which is the max used by a shader stage * the number of shader stages

Cc: mesa-stable

Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <!12829>
41 jobs for !12829 with zink-stack in 10 minutes and 55 seconds (queued for 8 seconds)
latest detached
Status Name Job ID Coverage
  Sanity
passed sanity #13625210

00:00:07

 
  Container
passed debian/android_build #13625216

00:00:21

passed debian/arm_build #13625220
aarch64

00:00:25

passed debian/arm_test #13625225

00:00:25

passed debian/i386_build #13625213

00:00:21

passed debian/ppc64el_build #13625214

00:00:21

passed debian/s390x_build #13625215

00:00:32

passed debian/x86_build #13625212

00:00:32

passed debian/x86_build-base #13625211

00:00:35

passed debian/x86_test-base #13625217

00:00:21

passed debian/x86_test-gl #13625218

00:00:28

passed debian/x86_test-vk #13625219

00:00:27

passed fedora/x86_build #13625221

00:00:35

passed kernel+rootfs_amd64 #13625222

00:00:11

passed kernel+rootfs_arm64 #13625223
aarch64

00:01:15

passed kernel+rootfs_armhf #13625224
aarch64

00:00:12

passed windows_build_vs2019 #13625226
windows shell 1809 mesa

00:00:12

 
  Build X86 64
passed debian-clang #13625233

00:09:13

passed debian-clover #13625234

00:01:01

passed debian-clover-testing #13625229

00:02:02

passed debian-gallium #13625230

00:05:48

passed debian-release #13625231

00:04:02

passed debian-testing #13625227

00:02:14

passed debian-testing-asan #13625228

00:02:25

passed debian-vulkan #13625235

00:02:01

passed fedora-release #13625232

00:02:23

 
  Build Misc
passed debian-android #13625236

00:02:01

passed debian-arm64 #13625238
aarch64

00:01:30

passed debian-arm64-asan #13625239
aarch64

00:03:04

passed debian-arm64-build-test #13625240
aarch64

00:01:25

passed debian-armhf #13625237
aarch64

00:01:47

passed debian-i386 #13625242

00:02:12

passed debian-mingw32-x86_64 #13625245

00:02:46

passed debian-ppc64el #13625244

00:02:00

passed debian-s390x #13625243
kvm

00:03:47

passed windows-vs2019 #13625241
windows docker 1809 mesa

00:04:57

 
  Layered Backends
passed zink-lvp-deqp 1/2 #13625249

00:05:34

passed zink-lvp-deqp 2/2 #13625250

00:05:10

passed zink-piglit-lazy #13625248

00:04:10

passed zink-piglit-no_timelines #13625247

00:03:23

passed zink-piglit-timelines #13625246

00:07:14