Descriptor set layout binding information needed by the pipeline layout
has to persist after the descriptor set layout object has been
destroyed.

The spec states:
"VkDescriptorSetLayout objects may be accessed by commands that operate
on descriptor sets allocated using that layout, and those descriptor
sets must not be updated with vkUpdateDescriptorSets after the
descriptor set layout has been destroyed. Otherwise, a
VkDescriptorSetLayout object passed as a parameter to create another
object is not further accessed by that object after the duration of the
command it is passed into."

Bug: b/154522740
Change-Id: Ia6349383139ae0fceac328a685b06e2ec253a589
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/44328
Presubmit-Ready: Nicolas Capens <nicolascapens@google.com>
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>