zink: only set layer info for samplerviews if there are multiple layers

fixes a bunch of validation errors
40 jobs for !10703 with zink-samplerview_refactor in 37 seconds (queued for 4 seconds)
detached
Status Job ID Name Coverage
  Sanity
passed #9590610
sanity

00:00:37

 
  Container
manual #9590613
aarch64 manual
arm_build
manual #9590614
windows shell 1809 mesa manual
windows_build_vs2019
manual #9590611
manual
x86_build-base
manual #9590612
manual
x86_test-base
 
  Container 2
created #9590619
android_build
created #9590616
i386_build
created #9590622
kernel+rootfs_amd64
created #9590623
aarch64
kernel+rootfs_arm64
created #9590624
aarch64
kernel+rootfs_armhf
created #9590617
ppc64el_build
created #9590618
s390x_build
created #9590615
x86_build
created #9590620
x86_test-gl
created #9590621
x86_test-vk
 
  Meson X86 64
created #9590630
meson-clang
created #9590631
meson-clover
created #9590627
meson-clover-testing
created #9590628
meson-gallium
created #9590629
meson-release
created #9590625
meson-testing
created #9590626
meson-testing-asan
created #9590632
meson-vulkan
 
  Build Misc
created #9590633
arm_test
created #9590634
meson-android
created #9590636
aarch64
meson-arm64
created #9590637
aarch64
meson-arm64-asan
created #9590638
aarch64
meson-arm64-build-test
created #9590635
aarch64
meson-armhf
created #9590639
meson-i386
created #9590642
meson-mingw32-x86_64
created #9590641
meson-ppc64el
created #9590640
kvm
meson-s390x
 
  Intel
created #9590645
mesa-ci-aarch64-lava-collabora manual
iris-amly-traces:amd64
created #9590643
mesa-ci-aarch64-lava-collabora manual
iris-apl-traces:amd64
created #9590644
mesa-ci-aarch64-lava-collabora manual
iris-glk-traces:amd64
 
  Layered Backends
created #9590649
zink-lvp-gl
created #9590647
zink-lvp-gles2
created #9590648
zink-lvp-gles3
created #9590646
zink-piglit-quick_gl