Vulkan: Rearrange GraphicsPipelineDesc to reduce footprint Bits for VK_EXT_extended_dynamic_state2 are moved to the end of the desc. Some bits are also rearranged and some paddings removed for a total of 4 bytes of reduction in desc size. Bug: angleproject:7328 Change-Id: I48f20408a8a2cb7bce0d8e2d0d2ccd8a121f7894 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3652747 Commit-Queue: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Reviewed-by: Yuxin Hu <yuxinhu@google.com>