Vulkan: Clean up depthStencil feedback loop implementation Part1 This is first clean up effort for depth stencil feedback loop implementation. This CL moves updateRenderPassStencilReadOnlyMode and updateRenderPassDepthReadOnlyMode methods from FramebufferVk to RenderPassCommandBufferHelper class. The method is actually updating renderPass's state, not FramebufferVk's state. In the next CL, FramebufferVk will be removed from the argument as well. With this change, I also removes updateStartedRenderPassWithDepthMode() and updateStartedRenderPassWithStencilMode() to use updateStartedRenderPassWithDepthStencilMode() directly. This CL is mechanical changes only, no behavior chnage is expected. Bug: b/289436017 Change-Id: Id3960f973a7115c05ebea199cb8ef802e995941a Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/4679365 Commit-Queue: Charlie Lao <cclao@google.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org> Reviewed-by: Yuxin Hu <yuxinhu@google.com>