Fix tracking of dynamic offsets when binding multiple descriptor sets

Before this, when binding multiple sets that use dynamic offsets, the
wrong offsets would be stored for all sets other than the first. This
caused the wrong offsets to be used when replaying individual draws.

renderdoc/driver/vulkan/wrappers/vk_cmd_funcs.cpp

@@ -1334,6 +1334,7 @@ bool WrappedVulkan::Serialise_vkCmdBindDescriptorSets(
         descsets[first + i].descSet = descriptorIDs[i];
         uint32_t dynCount = m_CreationInfo.m_DescSetLayout[descSetLayouts[first + i]].dynamicCount;
         descsets[first + i].offsets.assign(offsIter, offsIter + dynCount);
+        offsIter += dynCount;
         dynConsumed += dynCount;
         RDCASSERT(dynConsumed <= offsCount);
       }