Vulkan: Let texture buffer handle BufferVk's storage change When buffer's storage changed due to glBufferData call, texture buffer code should also respond to this and update the texture descriptor set. This CL merges BufferVkStorageChanged message into InternalMemoryAllocationChanged and removed BufferVkStorageChanged all together. Bug: angleproject:7283 Change-Id: I230ee7268634e747d06eab1954f5a76ecf84c9d6 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3646955 Commit-Queue: Charlie Lao <cclao@google.com> Reviewed-by: mohan maiya <m.maiya@samsung.com> Reviewed-by: Shahbaz Youssefi <syoussefi@chromium.org>