Vulkan: Handle new validation errors With updated validation layers Vulkan backend is hitting two new errors. This CL fixes one and works around (WA) another. Fixes issue where a Buffer used in vkCmdDispatchIndirect() did not have VK_BUFFER_USAGE_INDIRECT_BUFFER_BIT set so now setting that usage bit for all buffers. WA issue where invalid topologies enabled primitiveRestart so ignoring that VUID initially until complete fix is implemented. Bug: angleproject:3832 Change-Id: Ie3f681eaf9e2051c27bdf00a35dc50d8ad4a2528 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1763196 Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Tobin Ehlis <tobine@google.com>