tu: Raise maxDescriptorSetUpdateAfterBindUniformBuffersDynamic to 16

... and reduce maxDescriptorSetUpdateAfterBindStorageBuffersDynamic from 12 to
8.

MAX_DYNAMIC_BUFFERS is MAX_DYNAMIC_UNIFORM_BUFFERS +
MAX_DYNAMIC_STORAGE_BUFFERS. We set

maxDescriptorSetUniformBuffersDynamic = MAX_DYNAMIC_UNIFORM_BUFFERS
maxDescriptorSetStorageBuffersDynamic = MAX_DYNAMIC_STORAGE_BUFFERS
maxDescriptorSetUpdateAfterBindUniformBuffersDynamic = MAX_DYNAMIC_BUFFERS / 2
maxDescriptorSetUpdateAfterBindStorageBuffersDynamic = MAX_DYNAMIC_BUFFERS / 2

The CTS test checks that

maxDescriptorSetUpdateAfterBindUniformBuffersDynamic
	- is at least 8; and
	- is at least maxDescriptorSetUniformBuffersDynamic
maxDescriptorSetUpdateAfterBindStorageBuffersDynamic
	- is at least 4; and
	- and is at least maxDescriptorSetStorageBuffersDynamic

Prior to this patch maxDescriptorSetUpdateAfterBindUniformBuffersDynamic was 12
but maxDescriptorSetUniformBuffersDynamic was 16, thus causing the CTS failure
in
  dEQP-VK.api.info.vulkan1p2_limits_validation.ext_descriptor_indexing

By raising maxDescriptorSetUpdateAfterBindUniformBuffersDynamic to the same
value as maxDescriptorSetUniformBuffersDynamic, we bring the limits into the
appropriate ranges. We do the same thing for
maxDescriptorSetUpdateAfterBindStorageBuffersDynamic by assigning it the same
value as maxDescriptorSetStorageBuffersDynamic.

Part-of: <!12193>
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